Given a document, find the main entity about whom the author is writing. Write the full name if mentioned in the text. Note that URLs in the text have been replaced with [Link].

[Q]: And with a mangled racket and plenty of kicking and screaming  including a couple of arguments with the chair umpire  then a postmatch parting shot at a line judge Safin called "a little bit too blind."
 Safin used to rant about disliking tennis on grass  and he once complained about the high price and low quality of food at the players' restaurant at the All England Club. Well  he doesn't have to worry about any of that again after bowing out in his final Wimbledon with a 6-2  3-6  7-6 (4)  6-4 loss to Levine.
 After confirming this would be his last appearance at the grass-court Grand Slam tournament -- Safin has vowed to retire at season's end -- he was asked how he feels about being done with Wimbledon.
 He's a former No. 1 player who won the 2000 U.S. Open and 2005 Australian Open  but a series of injuries slowed him recently. Still  Safin came to Wimbledon ranked 24th and seeded 14th  and had to be considered quite a favorite against Levine  who never had defeated anyone ranked better than 67th.
Safin has vowed to retire at season's end -- he was asked how he feels about being done with Wimbledon.
 He's a former No. 1 player who won the 2000 U.S. Open and 2005 Australian Open  but a series of injuries slowed him recently. Still  Safin came to Wimbledon ranked 24th and seeded 14th  and had to be considered quite a favorite against Levine  who never had defeated anyone ranked better than 67th.
 "He's an amazing player  and I'm still kind of feeling weird right now that I just beat Safin  because I've always watched him play on TV " said Levine  who turned pro in 2007. "I just kind of went out there with nothing to lose and played some good tennis."
 Levine was a teen when Safin burst onto the scene as a brash  big-hitting 20-year-old who knocked off Sampras to win the U.S. Open.
 "I really had to ... focus on playing against the ball and not worrying about  'Oh  wow  I'm playing against Marat Safin on the other side of the court '" Levine said. "Because then things could have gotten a lot more interesting."
 As is his wont  Safin made things interesting enough. In the early going  he broke his racket by spiking it on the court.
 Leading 4-3 in the third-set tiebreaker  Safin hit a shot near a line that was ruled out. Afterward  Safin said: "Thanks for the guy who made the call. I want to say hello to him. Too bad that he was a little bit too blind."
 In the fourth set  Safin told the chair umpire he could check for chalk on the ball to confirm a call. Rebuffed  Safin added: "So all players are stupid?"
 Safin reached at least the semifinals at all four majors  including at Wimbledon last year  but he has been criticized for not living up to the potential stored in his 6-foot-4 (1.93-meter) frame -- about 7 inches (18 centimeters) taller than Levine.
 "In the history of tennis  everybody's an underachiever " Safin said. "Agassi should have been winning  I don't know  15 Grand Slams. Sampras should have been winning 20 Grand Slams. Federer should be winning -- already should have 25."
 "I should probably have (won) a couple of more " he said  "but I'm pretty satisfied with what I did."
[A]: Marat Safin


[Q]: The department's narcotics division began the investigation when a source told them about the group  officials said. The buys were conducted by undercover officers who infiltrated the group  according to Anthony Riccio  chief of the department's organized crime division.
 Riccio  said there are “dozens and dozens of these secret groups  a lot of them used for illegal things  including trafficking the guns and firearms. It's dozens of them out there.”
 He  said many of the guns had defaced serial numbers  making them difficult to trace. “These are guns that are winding up in the South Side  West Side of the city being used in gang shootings ”  Riccio  said.
 He  said the Facebook group selling guns and drugs would not be found by searching and that someone had to vouch for anyone who wanted to join them.
“I absolutely think Facebook has a responsibility to monitor this and for this very reason ”  Riccio  said. “There’s other illegal activities — I want to point out this is phase one — there's other illegal activities going on on Facebook. We're looking at potentially human trafficking  things of that nature as well. There's a lot of tentacles going out here.
[A]: Anthony Riccio


[Q]: A letter sent to all 32 NFL teams by Commissioner Roger Goodell  makes clear that the league wants to "move past" the anthem controversy. The league will propose a standardized policy on behavior during the playing of the National Anthem that will include all players and team personnel standing.
 The letter  does not mention any punishment for players who refuse to stand  which makes enforcement of the policy problematic.
 Goodell  made it clear in  the letter   obtained by ESPN's Adam Schefter  that  he  wants players to stand during the anthem.  He  did not provide specifics on how  he  intends to ensure it  but  he  wrote that it would "include such elements as an in-season platform to promote the work of our players on these core issues." The issue will be discussed  and likely acted upon  during the NFL's regularly-scheduled fall meetings on Oct. 17-18. In  the letter    Goodell  said  he  wanted to end the controversy by agreeing on a uniform approach for all teams. "Like many of our fans "  Goodell  wrote  "we believe that everyone should stand for the national anthem. It is an important moment in our game. We want to honor our flag and our country  and our fans expect that of us. "We also care deeply about our players and respect their opinions and concerns about critical social issues. The controversy over the Anthem is a barrier to having honest conversations and making real progress on the underlying issues. We need to move past this controversy  and we want to do that together with our players." The NFL's current anthem policy states that players "should" stand for the anthem  but it stops short of requiring it. The proposed new policy is the result of "many of discussions with clubs and players " Goodell added.
Local 100 of the United Labor Unions has filed a complaint charging that Jones's implicit demands of players violated the National Labor Relations Act. "[T]he employer  evidenced by repeated public statements  is attempting to threaten  coerce and intimidate all Dallas Cowboys players on the roster in order to prevent them from exercising concerted activity protected under the act by saying that he will fire any players involved in such concerted activity " the National Labor Relations Board said in its filing. Jones has not actually threatened to fire players  instead saying they "will not play " but a labor union spokesman told ESPN that is a "distinction without difference when it comes to the law." The NFL's game operations manual has said players "should" stand for the anthem   a stance NFL commissioner Roger Goodell  reaffirmed Tuesday in a memo to team owners. "Like many of our fans  we believe that everyone should stand for  the National Anthem " Goodell  wrote. But there's a gap between "should" and "must " and in trying to bridge that gap  Jones overreached  the labor union contends. The NLRB will investigate the case and will take it to trial if it determines a violation occurred and a settlement can't be reached. Meanwhile  Jones appeared to moderate his stance the tiniest bit on Tuesday  allowing for the possibility of pre-anthem protests similar to what the Cowboys did prior to their game against the Arizona Cardinals in Week 3. "If we're going to have any other recognition the place to have it is before the anthem in my view and be real clear that it's not associated with the anthem " Jones told 105.3 The Fan in Dallas. "I think it's real important for our players that they have that to reply to anybody whether they're asking them to express themselves or not that the way we do it where I work  where I earn my livelihood  is that we stand for the flag." It's impossible to overstate the distraction that Jones has created in the Cowboys' locker room  as well as others across the NFL. Players must decide whether paychecks outweigh principles  and star players must decide whether to take the heat for lesser-known teammates. This story isn't going away  and it's no longer just the players driving the narrative.
[A]:
Roger Goodell