Martina Hingis (born 30 September 1980) is a Swiss professional tennis player, a former world No. 1 singles player and currently ranked world No. 2 in doubles by the WTA.
 She has spent a total of 209 weeks as the singles No. 1 and has won five Grand Slam singles titles, thirteen Grand Slam women's doubles titles, winning a calendar-year doubles Grand Slam in 1998, and seven Grand Slam mixed doubles titles; for a combined total of twenty-five major titles.
 In addition, she has won the season-ending WTA Championships two times in singles and three times in doubles, and an Olympic silver medal.
The Prince original graphite, or the “POG” as it is called, or “The Original G” is a tennis racquet manufactured by Prince Sports.
 It was first introduced in 1980 and has been used by numerous world-class tennis players, including Andre Agassi, Michael Chang, Gabriela Sabatini, and Monica Seles.
Martina Hingis and Jana Novotná were the defending champions, but they did not compete together this year.
 Novotná instead partnered with Natasha Zvereva as the first seed, whereas Hingis partnered with Anna Kournikova as the second seed.
 Novotná and Zvereva retired in their quarterfinal match against Lindsay Davenport and Mary Pierce, but Hingis and Kournikova reached the final where they lost to American sisters Serena and Venus Williams, 6–3, 6–7, 8–6.
 This was the first Grand Slam for the Williams sisters and would be their first step towards completing a Career Golden Slam in doubles.
Unmatched is a documentary about tennis players Martina Navratilova and Chris Evert, their decades-long on-court rivalry and lifelong friendship, created for ESPN's "30 for 30" documentary series.
 Evert and Navratilova met in 80 matches, 60 finals and 14 grand slam finals with Navratilova sporting a 43-37 advantage.
The tennis players Venus Williams (United States) and Martina Hingis (Switzerland) met 21 times during their careers.
 The overall head-to-head series is 11–10, in Hingis' favor.
 Their rivalry is one of the best in women's sports and has been called a "rivalry for the ages".
Michael Te-Pei Chang (born February 22, 1972) is a retired American professional tennis player.
 He won 34 top-level professional singles titles, including the 1989 French Open when he was 17.
 He also was a three-time runner-up at the majors and reached a career best ranking of world No. 2 in 1996.
 Since he was shorter than virtually all of his opponents, he played a dogged defensive style utilizing his quickness and speed.
 In 2008, he was inducted into the International Tennis Hall of Fame, and he has coached Kei Nishikori since 2014.
The 2000 du Maurier Open – Women's Doubles was the women's doubles event of the one hundred and eleventh edition of the Canadian Open; a WTA Tier I tournament and the most prestigious women's tennis tournament held in Canada.
 Jana Novotná and Mary Pierce were the defending champions, but Novotná retired from professional tennis in 1999 and Pierce did not compete at the tournament.
 Martina Hingis and Nathalie Tauziat won the title by defeating Julie Halard-Decugis and Ai Sugiyama 6–3, 3–6, 6–4 in the final.
 It was the 11th title for Hingis and the 21st title for Tauziat in their respective doubles careers.
The 1999 Porsche Tennis Grand Prix – Doubles was the tennis doubles event at the 1999 Porsche Tennis Grand Prix, the twenty-second edition of the most prestigious tournament in Baden-Württemberg.
 Lindsay Davenport and Natasha Zvereva were the defending champions, but they did not compete this year.
 Davenport competed with Martina Hingis as the first seed, while Zvereva competed with Elena Tatarkova.
 Davenport and Hingis withdrew in the quarterfinals due to Davenport having a wrist injury, whilst Tatarkova and Zvereva were knocked out in the first round.
Meredith McGrath (born April 28, 1971) is a former professional tennis player.
 She was born in Midland, Michigan, USA and made her debut on the Women's Tennis Association tour in 1988.
 In her eight-year professional career Meredith achieved career-high world rankings of #18 in singles and #4 in doubles.
 She notched victories over such players as Martina Navratilova, Martina Hingis, Anna Kournikova, Jana Novotna, Arantxa Sanchez Vicario, and Gigi Fernandez.
 The pinnacle of her career came in reaching the singles semi-finals and doubles finals at the 1996 Wimbledon Championships.
 In the singles she defeated Mana Endo, Amanda Coetzer, Nancy Feber, Katarína Studeníková and Mary Joe Fernandez before losing to Arantxa Sánchez Vicario.
 An injury the week prior to the 1996 Wimbledon Championships eventually ended her career.
 Meredith won the 1995 U.S. Open Mixed Doubles Championship (she was runner-up in 1989) and was the runner-up in the 1994 Australian Open Doubles Championship.
 Meredith won three WTA singles titles: Oklahoma City and Eastbourne in 1994 and Birmingham in 1996, 25 doubles titles.
 She retired with a 140–83 record in singles and a 189–40 record in doubles.
 Meredith was recognized by Tennis Magazine as the WTA Comeback Player of the Year as she overcame near career-ending injuries to having her most successful competitive season in 1996.
 In 1994 she received the WTA Tour Comeback Player of the Year.
The tennis players Serena Williams (United States) and Martina Hingis (Switzerland) met 13 times during their careers.
 The overall head-to-head series is 7–6, in Williams' favor.
 They turned pro within a year of each other, Hingis in October 1994 and Serena in September 1995.

Question: Do tennis players Martina Hingis and Michael Chang have the same nationality?
Answer: no