Rafael Nadal withdraws from Wimbledon due to injury, sending Nick ...

(CNN) Rafael Nadal has withdrawn from Wimbledon due to an abdominal injury.

The 22-time grand slam champion was scheduled to face Nick Kyrgios in their semifinal match on Friday. Kyrgios will now head straight to the final to face the winner of the match between Novak Djokovic and Cameron Norrie.

"I have to pull out from the tournament," Nadal said during a Thursday news conference. "I have a tear in the (abdominal) muscle."

Nadal said he spent the whole day thinking about what he should do, but decided it wouldn't "make sense" to keep going.

"If I keep going, the injury is going to be worse and worse," he said, adding how "sad" he felt about it.

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Coco Gauff says overturning Roe v. Wade is 'going backwards ...

(CNN) The Supreme Court's decision to overturn Roe v. Wade is a case of history repeating itself and "going backwards", American tennis star Coco Gauff said Saturday.

Friday's opinion held that there is no longer a federal constitutional right to an abortion, with abortion rights to be determined by states, unless Congress acts.

Speaking ahead of the start of Wimbledon's main draw, Gauff said she was "disappointed" with the decision.

"I feel bad for future women and women now, but I also feel bad for those who protested for this," the 18-year-old told reporters.

"To see that decision be reversed, I just think that's history repeating itself and I feel like, at least from my reading and researching because I do like history ... having this decision reversed just feels like we're almost going backwards."

The Supreme Court's opinion has sparked concerns that the ruling could open the door for courts to overturn same-sex marriage, contraception and other rights.

Though the majority opinion, written by Justice Samuel Alito, attempted to wall off its holding in Friday's abortion case from those other rulings, Justice Clarence Thomas wrote separately to call explicitly for those other rulings to be revisited.

Gauff added that she was concerned the ruling could be the first of other similar decisions on social issues.

"I feel like it also kind of puts a lead way in maybe to reverse other things that we -- I wouldn't say me personally -- worked so hard to reverse."

Gauff during the French Open in May.

The World no. 12 is set to face Romania's Elena-Gabriela Ruse, ranked 43 places below her, in the first round at the All England Tennis Club on Monday.

Gauff will not face any Russian or Belarusian opponents at Wimbledon after the tournament organizer's decision to bar players from the two nations competing following Russia's invasion of Ukraine.

Quizzed on the move, the American said she understood "both sides".

"For me it's a difficult decision just because I do know a lot of the Belarusian and Russian athletes and I know -- at least the ones that I spoke to -- [they] definitely don't support what's happening in Ukraine right now," Gauff said.

"But I also do understand the side of trying to put global pressure on the Russian government to pull out of Ukraine and how sports can kind of impact that, so I think both sides of the situation are just tricky."

The 18-year-old arrives in Wimbledon on the back of a first grand slam singles final appearance at the French Open in June.

Though she suffered a straight sets defeat to an imperious Iga Swiatek in Paris -- as well as losing in the doubles final -- Gauff believes the experience has only made her stronger as she looks improve upon her career-best fourth round runs at Wimbledon in 2019 and 2021.

Gauff serves against Swiatek during the French Open Singles Final.

"A lot of positives to take from it, that I can play two weeks of highly competitive tennis in two events. I would've never thought I would've made the final of both," she said.

"I learned a lot from that final and I'm going to take what I learned into here [Wimbledon]. Hopefully I go far, but it was definitely the experience of a lifetime and hopefully I can recreate it."

Serena Williams decides not to comment yet

Meanwhile, seven-time Wimbledon champion Serena Williams said she had no thoughts she was "ready to share right now" on Roe v. Wade being overturned.

The 40-year-old also decided against commenting on the decision to ban Russian and Belarusian players from competing.

"Another heavy subject that involves a tremendous amount of politics and from what I understand in government and I'm going to step away from that," she told reporters.

Needing one more triumph to match Margaret Court's record of 24 grand slam singles titles, Williams returns to Wimbledon after being forced to retire from last year's opening round due to a leg injury.

Williams plays a backhand during a training session ahead of Wimbledon.

year-long absence from the sport ended with a run to the doubles semi-finals of the Eastbourne International alongside Ons Jabeur last week, but the pair were forced to retire after the Tunisian suffered an injury.

Ahead of her opening match against world No. 113 Harmony Tan, Williams reflected on the "surreal" feeling of returning to Wimbledon after a "tough" year.

"I gave everything I could. Just everyday getting ready or trying to make it," she said.

"Hung up my rackets for a little bit until I could just heal because it's a tough injury to have what I had last year. It was no fun."

Asked how close she came to leaving the sport completely, Williams said she never retired.

"I just needed to heal physically, mentally ... I had no plans to be honest," she added.

"I just didn't know when I would come back. I didn't know how I would come back. Obviously, Wimbledon is such a great place to be and it just kind of worked out."

Wimbledon runs from June 27 until July 10.

Naomi Osaka withdraws from Australian Open tune-up with injury

AP

MELBOURNE, Australia (AP) — Defending Australian Open champion Naomi Osaka has withdrawn from her semifinal match at a WTA tournament in Melbourne with an abdominal injury, allowing her opponent Veronika Kudermetova to advance to the final on a walkover.

“I had a lot of fun playing here in Melbourne. Unfortunately I have an abdominal injury which I need to rest and prepare for the Australian Open," Osaka said in a statement issued by Tennis Australia. The Australian Open begins on Jan. 17.

In a follow-up tweet later Saturday, Osaka said that her "body got a shock from playing back to back intense matches after the break I took" but added that she'll "try to rest up and I'll see (the fans) soon!"

Earlier, American Amanda Anisimova advanced to her first final since 2019 with a 6-2, 6-0 win over Daria Kasatkina in the WTA's Summer Set 2 event on Saturday at Rod Laver Arena.

Anisimova will play either fellow American Ann Li or Aliaksandra Sasnovich of Belarus. They play their semifinal later Saturday.

In other semifinal play at the Summer Set 1 event, also in Melbourne, Simona Halep took on Zheng Qinwen, with the winner to face Kudermetova on Sunday.

In the semifinals of an ATP tournament at Melbourne Park, Rafael Nadal faced Finland’s Emil Ruusuvuori and Maxime Cressy played Grigor Dimitrov.

At the Adelaide International, top-ranked and Wimbledon champion Ash Barty was scheduled to play her night semifinal against former French Open winner Iga Swiatek.

The Adelaide and Melbourne tournaments are among six tune-up events being staged in Australia this week ahead of the season-opening major at Melbourne Park.

Wimbledon draw: Defending champion Novak Djokovic to face ...

(CNN) Defending Wimbledon champion Novak Djokovic will face South Korea's Kwon Soon-woo in the opening round as he bids to retain his crown at the All England Club.

Friday's draw was largely kind to the world No. 3 -- the first seed here in Wimbledon due to the absences of Daniil Medvedev and Alexander Zverev -- but there is a mouthwatering potential clash against rising star Carlos Alcaraz in the quarterfinals.

No. 2 seed Rafael Nadal , fresh off his 22nd grand slam victory at the French Open, will play Argentina's Francisco Cerúndolo in the opening round and has a tricky potential fourth round match against Marin Cilic to contend with.

In the projected quarterfinals, there is also the chance for a rematch against talented Canadian star Felix Auger Aliassime, who recently pushed Nadal all the way in a five-set epic in the fourth round at Roland Garros.

Novak Djokovic is looking to defend the Wimbledon title he won in 2021.

Last year's runner-up Matteo Berrettini is projected to face Stefanos Tsitsipas in the quarterfinals, while third seed Casper Ruud could play Poland's Hubert Hurkacz, who recently claimed the grass court title in Halle.

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US Open tennis 2021: Schedule, TV, live stream information for tennis

The US Open – the fourth and final Grand Slam tournament of the year – starts on Monday, nearly a month after the final tennis event at the Tokyo Olympics.

Both the men’s and women’s fields will be without some of their biggest names. Roger Federer, Rafael Nadal and defending US Open champion Dominic Thiem will all miss this year’s tournament due to injury.

That makes world No. 1 Novak Djokovic, the favorite to win. Djokovic will attempt to become the first men's player since Rod Laver in 1969 to win the calendar year Grand Slam after winning the Australian Open, French Open and Wimbledon earlier this year. He’s also bidding to pass Federer and Nadal for most Grand Slam singles titles in men's tennis history.

On the women's side, six-time US Open champion Serena Williams withdrew because of a hamstring injury, while Venus Williams, a two-time champion, also pulled out because of a leg injury, leaving New York fans without a Williams sister to cheer for for the first time since 2003. Sofia Kenin, the 2020 Australian Open champion, will also miss the US Open after a positive COVID-19 test, despite being vaccinated.

Still, plenty of top players remain in the draw, including No. 1 Ashleigh Barty, who won Wimbledon last month, as well as two-time US Open and two-Australian Open champ Naomi Osaka.

US OPEN DRAW:Four key questions for both the men’s and women’s field

OSAKA:Looks to 'celebrate myself and my accomplishments more'

HELPING PLAYERS COPE:'Former tennis star serves as "mental health ambassador"

Here’s everything you need to know for the 2021 tournament at the Billie Jean King National Tennis Center in New York:

What day does the US Open begin?

After four days of qualifying matches, the first round of the US Open begins on Monday and runs through September 12. The women's singles final is Saturday, Sept. 11, and the men's on Sunday, Sept. 12.

What time does play begin at the US Open?

The day session begins at 11 a.m. ET with night sessions scheduled to start at 7 p.m. ET.

What TV channel is the US Open on?

ESPN and ESPN2 will air live coverage of the US Open for the 12th consecutive year. Tennis Channel will deliver a daily US Open preview shows and extensive match encore programming.

How can I watch the US Open online via live stream?

Fans can catch matches on ESPN3, ESPN+ and the ESPN app or streaming services like Hulu, Sling and fuboTV that offer ESPN.

What are the best matches to watch on opening day?

Play at Arthur Ashe Stadium kicks off at noon with an All-American matchup between 2017 US Open champion Sloane Stephens and Madison Keys, who lost to Stephens in the 2017 final.

Other big matches on Day 1:

No. 3 Stefanos Tsitsipas vs. Andy Murray (Ashe)

No. 19 John Isner vs. Brandon Nakashima (Louis Armstrong)

No. 21 Coco Gauff vs. Magda Linette (Armstrong)

Big matches on Night 1:

No. 3 Naomi Osaka vs. Marie Bouzkova (Ashe)

No. 18 Roberto Bautista Agut vs. Nick Kyrgios (Armstrong)

Roger Federer, Rafael Nadal join Andy Murray in skipping Rogers ...

AP

TORONTO (AP) — Roger Federer and Rafael Nadal have pulled out of the Rogers Cup, leaving the Toronto tournament without three of the world's top four men's tennis players.

Tennis Canada announced the withdrawals Tuesday, a day after Wimbledon champion and world No. 2 Andy Murray said he would not defend his Rogers Cup title this year, citing fatigue.

No. 3 Federer is coming off a run to the semifinals at Wimbledon, where he lost in five sets to Canada's Milos Raonic.

"Toronto is one of my favorite events on the calendar and I am disappointed that I won't be able to compete in front of the great tennis fans in Canada," Federer said in a statement. "Looking ahead, it is best for me that I take more time after Wimbledon. I look forward to coming back to Canada next year."

Wimbledon champion Andy Murray withdraws from Rogers Cup

Fourth-ranked Nadal has not played since withdrawing from the French Open after suffering a wrist injury.

"I only started practicing a week ago after my wrist injury and I am not ready to play such an important event," he said in a statement. "I am very much looking forward to playing in Toronto in a couple of years since I have always been treated great in that tournament and have a lot of great Canadian fans."

Top-ranked Novak Djokovic and Raonic, whom Murray beat in three sets in the Wimbledon final, remain part of the Rogers Cup field.

The tournament begins with the start of qualifying on Saturday.

Rafael Nadal says his 'intention is to play at Wimbledon' for first time ...

(CNN) Rafael Nadal said on Friday that his "intention is to play at Wimbledon" for the first time in three years despite a lingering foot injury.

The 36-year-old, speaking at a press conference in Mallorca, Spain, said that he will travel to London on Monday to play at the grand slam which he has won twice and will play depending on how his foot feels.

"My intention is to try to play Wimbledon like I said after Paris, if there's some possibility, which it looks like," Nadal explained. "This week where I trained, they said that there's a chance, so my intention is to travel to London on Monday, and if I travel to London, it's because I intend to play.

"If later on, as days go on, things don't go how I'd like them to, well, we'll see what happens. But my plan is to travel on Monday to London, do a week of training there, play an exhibition like I've done a lot of times at Hurlingham and prepare myself in the best way I can.

Nadal takes part in a training session at Santa Ponsa Country Club in Santa Ponsa, Mallorca.

He added: "It's been three years I haven't played (Wimbledon), I'm excited, but we'll see how (the foot) progresses. It's a day-by-day thing. I trust that things go well and I can go on with my week of training, so that I can have a chance to compete well at Wimbledon."

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Wimbledon updates | Nadal raises injury concern ahead of SF

AP

WIMBLEDON, England (AP) — The Latest from Wimbledon (all times local):

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9:30 p.m.

Rafael Nadal said it’s not a sure thing that he’ll be healthy enough to play Nick Kyrgios in the Wimbledon semifinals.

Nadal had abdominal pain and needed a medical timeout in the second set of his five-set victory over Taylor Fritz.

The 22-time Grand Slam champion said he would have “some more tests” on Thursday. He said he's been experiencing pain for almost a week and that it intensified during the match.

When asked in his post-match news conference about his chances of playing Friday against Kyrgios, Nadal responded: “I don’t know. Honestly, I can't give you a clear answer.”

The two-time Wimbledon champion beat Fritz 3-6, 7-5, 3-6, 7-5, 7-6 (10-4) on Centre Court.

Nadal was given anti-inflammatories during his medical timeout off the court. He said the trainer "just tried to relax a little bit the muscle there. But it’s difficult. Nothing can be fixed when you have a thing like this. That’s it.”

The Spaniard had battled through foot pain to win his 14th French Open title in June.

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9 p.m.

Desirae Krawczyk and Neal Skupski reached the mixed doubles final at Wimbledon with a 4-6, 7-5, 6-4 win over Sania Mirza and Mate Pavic on No. 2 Court.

They will face Australian duo Sam Stosur and Matthew Ebden in the final.

Krawczyk is American and Skupski is British.

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7:30 p.m.

Rafael Nadal advanced to the Wimbledon semifinals after winning a fifth-set tiebreaker against Taylor Fritz of the United States.

Nadal beat the 11th-seeded American 3-6, 7-5, 3-6, 7-5, 7-6 (10-4) on Centre Court.

The victory keeps alive Nadal’s chances for a calendar-year Grand Slam. The 36-year-old Spaniard will next play Nick Kyrgios for a place in Sunday’s final.

The 22-time Grand Slam champion had left the court with a trainer for a medical timeout in the second set but returned and played on.

The second-seeded Nadal improved to 8-0 in quarterfinal matches at the All England Club.

Rod Laver in 1969 was the last man to win all four major tournaments in the same calendar year.

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5:45 p.m.

Coco Gauff and Jack Sock have been eliminated from the mixed doubles tournament at Wimbledon.

The American pair lost to Australian duo Sam Stosur and Matthew Ebden in the semifinals 6-3, 5-7, 7-5 on No. 3 Court.

Both Gauff and Sock reached the third round in the singles tournaments.

Stosur and Ebden will face either Sania Mirza and Mate Pavic or Desirae Krawczyk and Neal Skupski in the final.

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5:40 p.m.

Nick Kyrgios advanced to the semifinals at a Grand Slam tournament for the first time by beating Cristian Garin 6-4, 6-3, 7-6 (5) on Centre Court at Wimbledon.

Kyrgios reached the quarterfinals at the All England Club when he made his debut at the grass-court major in 2014 but this year was his first time getting back to that stage.

The Australian is the lowest ranked and first unseeded men’s semifinalist since 2008. He is currently ranked 40th.

Kyrgios will face either two-time champion Rafael Nadal or Taylor Fritz in the semifinals on Friday.

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3 p.m.

Elena Rybakina became the first woman from Kazakhstan to reach the semifinals at a Grand Slam tournament by beating Ajla Tomljanovic 4-6, 6-2, 6-3 at Wimbledon.

The 17th-seeded Rybakina dropped her first set of the grass-court tournament but broke her Australian opponent early in the second and third sets.

Rybakina hit 15 aces against Tomljanovic on No. 1 Court and will next face 2019 Wimbledon champion Simona Halep for a spot in the final.

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2:40 p.m.

Simona Halep advanced to the Wimbledon semifinals with a 6-2, 6-4 win over 20-year-old Amanda Anisimova, the last American in the draw.

The 2019 Wimbledon champion extended her winning streak at the All England Club to 12 matches.

The 16th-seeded Halep hasn’t dropped a set en route to the final four.

She will next face either 17th-seeded Elena Rybakina or unseeded Ajla Tomljanovic for a place in the final.

The 30-year-old Romanian wasn’t able to defend her 2019 title last year — after the 2020 edition was canceled — because of a calf injury.

Anisimova was 17 years old when she beat Halep in the 2019 French Open quarterfinals — spoiling Halep's title defense.

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11:30 a.m.

Two former champions will be on Centre Court in the Wimbledon quarterfinals.

Simona Halep, the 2019 champion at the All England Club, will be up first against Amanda Anisimova. Two-time champion Rafael Nadal will follow against Taylor Fritz.

Both Anisimova and Fritz are Americans and will be trying to reach the Wimbledon semifinals for the first time.

On No. 1 Court, Ajla Tomljanovic will face 17th-seeded Elena Rybakina before Nick Kyrgios takes on Cristian Garin in the later match.

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More AP Wimbledon coverage: https://apnews.com/hub/wimbledon and https://apnews.com/hub/tennis and https://twitter.com/AP_Sports

The Latest: Keys rallies for late-night win at US Open

Associated Press

NEW YORK (AP) — The Latest on the U.S. Open (all times local):

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1:50 a.m.

Eighth-seeded Madison Keys rallied from down a set and a break to outlast fellow American Alison Riske in a first-round U.S. Open match that ended at 1:48 a.m. Tuesday morning.

Keys, who took a medical timeout in the second set to have a trainer manipulate her right shoulder, won 4-6, 7-6 (5), 6-2 in 2 hours, 26 minutes.

The 60th-ranked Riske had two points on her serve at 5-4 in the second-set tiebreaker to try to close out the match, but Keys won them both and clinched the set on the next point.

Riske has lost 10 straight Grand Slam matches. She's 2-16 against top-10 opponents, though one of the victories came against Petra Kvitova as Riske reached the round of 16 at the 2013 U.S. Open.

Keys hasn't lost in the first round at a major since the 2014 French Open. The 21-year-old is coming off a run to the Olympic semifinals, but she pulled out of the hard-court tuneup at New Haven because of a neck injury.

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1:15 a.m.

Americans Madison Keys and Alison Riske are headed to a third set in a first-round U.S. Open match that started Monday night and extended into Tuesday morning. Riske won the first set 6-4, then the eighth-seeded Keys pulled out the second 7-6 (5).

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11 p.m.

Novak Djokovic was bothered by his right arm during a first-round victory at the U.S. Open, getting treatment from a trainer, hitting slow serves and grimacing after some shots.

Still, the defending champion got through the match Monday night, beating Jerzy Janowicz of Poland 6-3, 5-7, 6-2, 6-1.

This was the No. 1-ranked Djokovic's first Grand Slam match since losing to Sam Querrey in the third round of Wimbledon.

Djokovic spoke before the U.S. Open about dealing with a left wrist injury that flared up in the days before the Rio Olympics this month. But it was his right arm that was problematic against Janowicz, a former top-20 player who reached the semifinals at Wimbledon in 2013 and is now ranked 247th after his own series of injury issues.

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9:40 p.m.

Jack Sock withstood Taylor Fritz's repeated comebacks to win the second five-set match between American men Monday at the U.S. Open.

The 26th-seeded Sock took the first two sets, dropped the next two, then went up two breaks in the fifth only for the 18-year-old Fritz to erase both of those. But Sock broke Fritz's serve again to clinch a 7-6 (3), 7-5, 3-6, 1-6, 6-4 win in 3 hours, 21 minutes.

Sock overcame 17 double-faults and 73 unforced errors to beat Fritz in five sets in the first round at a major for the second time this year — they also met at the Australian Open in Fritz's Grand Slam debut. The players combined for 99 winners Monday.

Fritz, last year's U.S. Open boys singles champ, is ranked a career-best 53rd.

Earlier Monday, 20th-seeded John Isner beat another 18-year-old, Frances Tiafoe, in five sets in an all-U.S. matchup.

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9:10 p.m.

Fifth-seeded Milos Raonic advanced to the second round at the U.S. Open with a straight-set win.

The Wimbledon runner-up beat 86th-ranked Dustin Brown 7-5, 6-3, 6-4 on Monday. Raonic had 41 winners.

The U.S. Open is the only major at which the Canadian has yet to make at least the quarterfinals.

Brown upset Rafael Nadal at Wimbledon in the second round last year.

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7:55 p.m.

Arthur Ashe Stadium's new roof has made its world premiere.

As Phil Collins sang the first notes of "In the Air Tonight" during the U.S. Open's opening ceremony Monday night, the two retractable panels began to slide apart. Less than five minutes later, just after the song had ended, they had fully opened to reveal a hazy sky.

Many fans' eyes and smartphones pointed upward instead of at the on-court stage as Collins performed. He was later joined by "Hamilton" original cast member Leslie Odom Jr.

There was no rain Monday to formally test the $150 million roof, but it still got a workout as part of the opening festivities. Officials closed it after the day session.

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6:50 p.m.

Olympic gold medalist Monica Puig has lost in the first round of the U.S. Open.

The 32nd-seeded Puig was upset by 61st-ranked Zheng Saisai 6-4, 6-2 on Monday. Puig had insisted Saturday that she was mentally ready for the year's final major after the whirlwind of the past couple of weeks, when she stunningly beat three Grand Slam champions to become Puerto Rico's first gold medalist and was feted at a parade on the island.

Still, she recognized it was quite possible her U.S. Open trip wouldn't go well, reminding herself that she's just 22 years old. She's now 1-3 at Flushing Meadows.

Zheng, also 22, upset Agnieszka Radwanska at the Olympics. She'll be seeking to make it to the third round at a major for the first time.

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6:20 p.m.

French Open champ Garbine Muguruza says she thinks the heat caused her to have trouble breathing early in her U.S Open first-round match.

The third-seeded Spaniard had to call for the trainer after dropping the first set to Belgian qualifier Elise Mertens with temperatures in the low 90s. Muguruza said after Monday's three-set victory that she had forgotten there were towels with ice available to cool off during changeovers. She also was able to relax more, which helped.

Muguruza says she had some trouble breathing in practice a couple of days earlier as well, but she felt fine during her warmup Monday. The conditions reminded her of the Australian Open, though she never remembered it being this uncomfortable in New York.

Then again, the 22-year-old has never stuck around past the second round in singles at the U.S. Open.

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5:35 p.m.

French tennis star Gael Monfils often brings down the house with his wild shots.

In the first round of the U.S. Open on Monday, his play took down a panel along the back of Court 17. Trying to chase an overhead, Monfils went leaping into the wall to attempt to reach the ball.

His right foot kicked a clock apparatus, and a moment later as he was reaching down to pick up his racket, the whole panel tumbled forward, spilling out wires from behind and clipping the back of his heels.

Monfils was feeling fortunate afterward that he hadn't been seriously injured. The digital panel was in worse shape from the collision, with the pieces all askew.

Asked if he had realized how hard he hit the wall, Monfils said: "When you are in the moment you don't feel really anything. Just jump."

The 10th-seeded Frenchman went on to beat Gilles Muller 6-4, 6-2, 7-6 (5).

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5:15 p.m.

In a matchup of American tennis present and future, 31-year-old John Isner rallied from down two sets to edge 18-year-old Frances Tiafoe in the first round of the U.S. Open.

The 125th-ranked Tiafoe had a chance to serve out the match in the fifth set Monday, but Isner broke back then pulled away in the final tiebreaker to win 3-6, 4-6, 7-6 (5), 6-2, 7-6 (3) in 3 hours, 27 minutes.

It was just the second career comeback from two sets down for Isner. Tiafoe had never before played a five-set match.

The 20th-seeded Isner has finished each of the last four years as the top-ranked U.S. man and has now won 11 straight Grand Slam first-round matches. He's 5-0 against fellow Americans at majors.

Tiafoe, who got in with a wild card, has just two career tour-level wins. He had played in two previous Grand Slam tournaments, losing in the first round both times.

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4:50 p.m.

French Open champ Garbine Muguruza lost the first set, called for the trainer and complained about trouble breathing. She won the second set without dropping a game, then pulled out a tough third set to move on at the U.S. Open.

The third-seeded Spaniard beat Belgian qualifier Elise Mertens 2-6, 6-0, 6-3 in the first round. She had to save a break point at 3-3 in the third.

The 22-year-old Muguruza went just 3-3 in her next six matches after winning her first major title at Roland Garros, before making a semifinal run at Cincinnati.

With temperatures in the low 90s, the heat rule went into effect before the third set, giving the players a 10-minute break.

The 137th-ranked Mertens is 20 years old and was making her Grand Slam debut. This was the first time she faced a top-20 opponent.

Muguruza has never gone past the second round at the U.S. Open.

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4:45 p.m.

Playing with his left wrist heavily bandaged, Rafael Nadal won his first Grand Slam match in more than three months, easily beating Denis Istomin of Uzbekistan 6-1, 6-4, 6-2 at the U.S. Open.

Nadal's first-round victory in Arthur Ashe Stadium on Monday was straightforward. He produced 14 of his 21 winners via his forehand, which showed little sign of being troubled by a wrist he says is still not completely healed.

Nadal hadn't played at a major since winning his second-round match at the French Open on May 26. He then withdrew from Roland Garros before the third round and sat out Wimbledon because of the problematic wrist.

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4:30 p.m.

John Isner has made a match of it against 18-year-old Frances Tiafoe in an all-American matchup at the U.S. Open.

The 20th-seeded Isner dropped the first two sets of their first-round match. But he then won the next two, and they are on serve early in the fifth set.

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3:20 p.m.

American teen CiCi Bellis is now 2 for 2 in the first round of the U.S. Open.

The darling of the 2014 tournament after she stunned Australian Open runner-up Dominika Cibulkova as a 15-year-old, Bellis is back in the main draw this year and beat 65th-ranked Viktorija Golubic 6-2, 6-3 on Monday.

Bellis, now 17, is ranked 158th and advanced through qualifying to make the field. She next faces another American, Shelby Rogers, who upset 27th-seeded Sara Errani.

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2:55 p.m.

U.S. teenager Frances Tiafoe is one set away from upsetting the top-ranked American man, John Isner.

The 18-year-old Tiafoe won the first two sets 6-3, 6-4 in the first round at the U.S. Open on Monday, breaking the big-serving Isner three times. Tiafoe, who's ranked 125th and got in with a wild card, is 0-2 at majors in his career.

Isner is seeded 20th and has won 10 straight Grand Slam first-round matches.

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2:45 p.m.

Polona Hercog says she had been sick for several days before her first-round U.S. Open match, in which she retired after suffering from dizziness and cramping.

The 120th-ranked Slovenian was trailing 6-0, 1-0 to second-seeded Angelique Kerber on Monday. Hercog says she felt dizzy after long rallies, and her legs started cramping in the fourth or fifth game. The 90-degree heat didn't help.

Had Hercog withdrawn before the match, a "lucky loser" who fell in qualifying could have replaced her. Told that Croatian player Donna Vekic had sarcastically tweeted "classy" about the match, Hercog said: "It's not my fault she lost in the last round of qualies."

Hercog says she felt OK during warmups and wanted to take advantage of the opportunity to face the Australian Open champ on Arthur Ashe Stadium.

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2:05 p.m.

Two-time U.S. Open runner-up Caroline Wozniacki rallied from a set down for her first Grand Slam match win of 2016.

Wozniacki beat American qualifier Taylor Townsend 4-6, 6-3, 6-4 on Monday in the first-ever match at the new 8,000-seat Grandstand. She lost in the first round at this year's Australian Open and Wimbledon and skipped the French Open because of a right ankle injury that forced her to miss 2½ months. The former No. 1 player's ranking has slipped to 74th, and she's unseeded at Flushing Meadows for the first time since her debut in 2007.

The 20-year-old Townsend, ranked 146th, was playing her second U.S. Open.

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1:50 p.m.

Australian Open champ Angelique Kerber advanced to the second round at the U.S. Open when her opponent retired early in the second set without winning a game.

The second-seeded Kerber led 6-0, 1-0 after 33 minutes when Polona Hercog stopped. The 120th-ranked Slovenian won just nine points in seven games.

After the first set on a 90-degree day, Hercog took a medical timeout. Trainers checked her blood pressure and rubbed ice bags on her legs.

Hercog, who's never been past the third round at a major, came in 2-1 against Kerber in tour-level matches, though they hadn't met since 2011.

Kerber, who lost to Serena Williams in the Wimbledon final, has a chance to overtake her for the No. 1 ranking depending on their results at Flushing Meadows.

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1:30 p.m.

Richard Gasquet, the first seeded player to lose at the U.S. Open, summed up his quick exit this way: "Not sure I could do worse."

The 13th-seeded Gasquet, a semifinalist at Flushing Meadows in 2013, hadn't lost in the first round at a Grand Slam tournament since the French Open 6½ years ago.

His 6-2, 6-2, 6-3 loss Monday was the first career victory over a player ranked in the top 15 for No. 84 Kyle Edmund of Britain.

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1:25 p.m.

Marin Cilic, the 2014 U.S. Open champ, is through to the second round with a straight-set win.

The seventh-seeded Cilic beat 108th-ranked Rogerio Dutra Silva 6-4, 7-5, 6-1 on Monday despite posting more unforced errors than winners (24-23). Cilic is coming off his first Masters title, beating Andy Murray in the final at Cincinnati.

Dutra Silva is now 0-3 against top-10 players. He came in 3-3 in his career at the U.S. Open and 0-5 in the other majors.

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1:05 p.m.

In his U.S. Open debut, Kyle Edmund has upset 13th-seeded Richard Gasquet.

The 21-year-old Brit won 6-2, 6-2, 6-3 on Monday against the 2013 U.S. Open semifinalist. Edmund, ranked 84th, had 40 winners, 21 on his forehand. He has twice made it to the second round at the French Open.

Gasquet hadn't lost in the first round at a major since 2010 at Roland Garros.

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12:45 p.m.

The woman who stunned Serena Williams at last year's U.S. Open en route to the final, Roberta Vinci of Italy, won the first match in the tournament's refurbished Arthur Ashe Stadium.

Vinci, who is seeded No. 7, overcame some second-set jitters to beat 46th-ranked Anna-Lena Friedsam of Germany 6-2, 6-4 on Monday.

In the 2015 semifinals at Flushing Meadows, Vinci — unseeded and ranked 43rd at the time — upset Williams, ending the American's bid for tennis' first calendar-year Grand Slam in 27 years. That put Vinci into her first major final, where she lost to another Italian, childhood friend Flavia Pennetta.

The temperature hit 90 degrees Monday, but the new retractable roof atop Ashe provided some shade for spectators — and, on one side of the court, players.

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11:20 a.m.

Play has started at the 2016 U.S. Open under sunny skies with no rain in the forecast for days, which could delay the first official use of the new retractable roof on Arthur Ashe Stadium.

The $150 million roof, which can close in about seven minutes, is to be used, according to tournament officials, only "in the event of inclement weather or the strong possibility of inclement weather."

Neither is expected in the next few days, with forecasts calling for clear skies and highs in the 80s.

The roof is still set to make its debut, of sorts, at Monday night's opening ceremony. The U.S. Tennis Association plans to shut the roof after the day session and open it for effect while Phil Collins performs "In the Air Tonight."

U.S. Open: Andy Murray withdraws because of hip injury

Sandra Harwitt

Special for USA TODAY Sports

NEW YORK — Andy Murray is the latest star-power player to withdraw from this year’s U.S. Open, pulling out because of an ongoing hip injury.

“Obviously I had the issue with the hip over what’s actually been since my match with Stan (Wawrinka in the semifinals) in Paris,” said Murray, on Saturday. “I did pretty much everything that I could to get myself ready here and took a number of weeks off after Wimbledon.”

Murray arrived in New York earlier this week with the hope that practice would reveal he was ready to play. He hasn’t competed since he lost to American Sam Querrey in a five-set quarterfinal at Wimbledon.

“(I) was actually practicing OK the last few days, but it’s too sore for me to win the tournament and ultimately that’s what I was here to try and do,” the Briton said.

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The No. 2 seed, was scheduled to play Tennys Sandgren in the first round. According to the rules, No. 5 seed Marin Cilic will move into Murray’s vacant spot and play Sandgren.

Lucky loser Lukas Lacko, the next eligible player from the qualifying event to receive entry into the draw, is the player to benefit from Murray’s departure.

It's the latest blow to the men's draw after two-time U.S. Open champion Novak Djokovic and defending champion Stan Wawrinka withdrew before the tournament. Djokovic is troubled by a right elbow injury and Wawrinka recently had knee surgery.

Murray revealed at Wimbledon he’s suffered from a chronic hip problem since his youth, but has always been able to manage the condition.

“You know I have never had to take any time off because of my hip before, so we’re hoping that by taking a few weeks off and resting and rehabbing, and really reducing the load that I was putting through it I would be OK by the time the U.S. Open came around,” Murray said.

Murray’s consulted with a number of hip specialists since the situation flared up at the French Open. At this point, Murray hasn’t decided what medical route he will follow, and whether he will follow Djokovic and Wawrinka’s lead in ending his 2017 season prematurely to get fit and prepared for 2018.

“I spoke to a number of specialists about it to get the best advice possible,” Murray said. “Obviously when you speak to a lot, there is different views and opinions on what the best thing to do is moving forward, and that’s a decision I’ll need to take now.

“Look, I want to be back on the court as soon as I can,” he added. “If it means that I can play before the end of the year then that’s what I would love to do. I miss competing.”