Rafael Nadal begins to celebrate after defeating Novak Djokovic in the U.S. Open men’s final on Monday at Arthur Ashe Stadium in New York. (Jason Szenes / EPA)
Novak Djokovic, left, congratulates Rafael Nadal after their U.S. Open men’s championship match on Monday night in New York. Nadal won his ninth Grand Slam title and first U.S. Open with a 6-4, 5-7, 6-4, 6-2 victory. (Charles Krupa / Associated Press)
Rafael Nadal of Spain comes to the net for a volley against Novak Djokovic on Monday in their U.S. Open men’s championship match. (Jason Szenes / EPA)
Novak Djokovic of Serbia reacts after losing a point to Rafael Nadal in the men’s final of the U.S. Open on Monday night. (Matthew Stockman / Getty Images)
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Rafael Nadal reacts after winning a point against Novak Djokovic on Monday in the U.S. Open men’s final. (Justin Lane / EPA)
Third-seeded Novak Djokovic of Serbia gets set to smash a forehand to Rafael Nadal on Monday in the U.S. Open men’s championship match. It was the second time Djokovic had played in an Open final. (Justin Lane / EPA)
Rafael Nadal hits a top-spin forehand return to Novak Djokovic during their men’s championship match at the U.S. Open on Monday night in New York. (Justin Lane / EPA)
Fans leave their Arthur Ashe Stadium seats after ordered to evacuate because of lightning during a thunderstorm on Monday at the U.S. Open men’s championship match. (Stan Honda / AFP / Getty Images)
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Second-seeded Kim Clijsters of Belgium gets into a forehand during her match against seventh-seeded Vera Zvonareva of Russia in the U.S. Open women’s final on Saturday night. Clijsters won her third Open title with a 6-2, 6-1 victory. (Al Bello / Getty Images)
Vera Zvonareva of Russia, playing in her second consecutive Grand Slam final, comes to the net for a volley against defending champion Kim Clijsters of Belgium on Saturday night in the U.S. Open final. (Timothy A. Clary / AFP / Getty Images)
Seventh-seeded Vera Zvonareva of Russia reacts after missing a shot against Kim Clijsters in the U.S. Open women’s final on Saturday night. (John G. Mabanglo / EPA)
Three-time U.S. Open champion Kim Clijsters of Belgium poses with daughter Jada after defeating Vera Zvonareva, 6-2, 6-1, in the U.S. Open women’s final on Saturday night in New York. (Al Bello / Getty Images)
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Top-seeded Rafael Nadal of Spain follows through on a backhand against Mikhail Youzhny in their U.S. Open semifinal match on Saturday. Nadal powered his way to a 6-2, 6-3, 6-4 victory over the 12th-seeded Russian. (Emmanuel Dunand / AFP / Getty Images)
Mikhail Youzhny of Russia sets up for a backhand return against Rafael Nadal in their U.S. Open semifinal match on Saturday. Youzhny fell to the top-seeded Spaniard in three sets. (Emmanuel Dunand / AFP / Getty Images)
The normally stoic Roger Federer, a five-time U.S. Open champion, lets out a yell after winning a point against Novak Djokovic in a U.S. Open semifinal on Saturday. (John G. Mabanglo / EPA)
Top-seeded Caroline Wozniacki of Denmark serves to Vera Zvonareva during their U.S. Open semifinal match on Friday. Wozniacki would lose the match, 6-4, 6-3. (Jim McIsaac / Getty Images)
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Vera Zvonareva of Russia stretches for a backhand return against Caroline Wozniacki on Friday during their U.S. Open semifinal match. Zvonareva defeated the top-seeded player from Denmark, 6-4, 6-3. (J. Conrad Williams Jr. / McClatchy-Tribune)
Venus Williams misses on an overhead smash in the second set against Kim Clijsters on Friday in their U.S. Open semifinal match. Clijsters went on to win, 4-6, 7-6, 6-4. (J. Conrad Williams Jr. / McClatchy-Tribune)
Third-seeded Venus Williams runs down a backhand return against second-seeded Kim Clijsters in their U.S. Open semifinal on Friday. Williams would lose to the defending champion, 4-6, 7-6, 6-4. (J. Conrad Williams Jr. / McClatchy-Tribune)
Maria Sharapova lets out a trademark grunt as she returns a shot to Caroline Wozniacki in the fourth round of the U.S. Open on Monday. The 14th-seeded Sharapova would fall to the 20-year-old and top-seeded Wozniacki in straight sets. (Kathy Willens / Associated Press)
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Top-seeded Caroline Wozniacki of Denmark chases down and returns a shot to Maria Sharapova of Russia during their fourth-round match at the U.S. Open on Monday. The 20-year-old Wozniacki won the match, 6-3, 6-4. (Don Emmert / AFP / Getty Images)
Mardy Fish prepares to slice a forehard back to Novak Djokovic during their fourth-round match on Monday at the U.S. Open. Fish would be eliminated, 6-3, 6-4, 6-1. (Kathy Willens / Associated Press)
Andy Murray of Scotland reacts to losing a point against Stanislas Wawrinka of Switzerland during their third-round match at the U.S. Open on Sunday. Wawrinka would upset the fourth-seeded Murray. (Andrew Gombert / EPA)
Andy Murray of scotland is treated by trainer Clay Sniteman during a break in his third-round match against Stanislal Wawrinka on Sunday at the U.S. Open. (Matthew Stockman / Getty Images)
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Kim Clijster of Belgium connects on a big forehand shot against Ana Ivanovic on Sunday at the U.S. Open. Clijsters needed only 59 minutes to dispatch Ivanovic, 6-2, 6-1. (Kathy Willens / Associated Press)
Ana Ivanovic of Serbia is none to pleased after losing a hard-fought point to Kim Clijster in their U.S. Open match on Sunday. (Kathy Willens / Associated Press)
Sam Querrey leans into a forehand return against Nicolas Almagro of Spain on Sunday during a 6-3, 6-4, 6-4 victory that moved the young American into the fourth round of the U.S. Open. (Andrew Gombert / EPA)
Maria Sharapova autographs memorabilia as she leaves the court following her 6-0, 6-0 victory over American teenager Beatice Capra on Saturday at the U.S. Open. (Paul J. Bereswill / Associated Press)
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Fourth-seeded Jelena Jankovic yells after losing a point against Kaia Kanepi during their match on Saturday. Kanepi pulled off an upset victory, 6-2, 7-6. (Paul J. Bereswill / Associated Press)
Roger Federer relaxes as a court attendant keeps him shaded during a break in the match with Paul-Henri Mathieu on Saturday at the U.S. Open. (Paul J. Bereswill / Associated Press)
Mardy Fish sends a hug to the crowd following his five-set victory over Arnaud Clement of France on Saturday at the U.S. Open. (Peter Foley / EPA)
Patty Schnyder of Switzerland cools off with an ice bag and a drink between sets as she plays Maria Jose Martinez Sanchez of Spain during the second round of the U.S. Open on Thursday. (Mark Humphrey / Associated Press)
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Caroline Wozniacki of Denmark is silhouetted as she serves to Kai-Lung Chang of Taipei in their second-round match on Thursday at the U.S. Open. Wozniacki won in straight sets. (Al Bello / Getty Images)
Aravane Rezai of France is a shadow of herself as she returns a shot to Beatrice Capra on Thursday during their second-round match at the U.S. Open. (Stan Honda / AFP/Getty Images)
Dustin Brown from Jamaica follows through on a shot against Ruben Ramirez Hidalgo of Spain in the first-round match on Wednesday. Brown would win a tightly contested three-set decision. (Timothy A. Clary / AFP/Getty Images)
Defending champion Kim Clijsters of Belgium returns a shot against Australia’s Sally Peers during their second-round match of the U.S. Open on Wednesday. Clijsters breezed to a 6-2, 6-1 victory. (Emmanuel Dunand / AFP/Getty Images)
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Venus Williams celebrates after a hard-fought point in the final game against Rebecca Marino of Canada on Wednesday in a second-round match at the U.S. Open. Williams won, 7-6, 6-3. (Stan Honda / AFP/Getty Images)
Patty Schnyder of Switzerland serves the ball to Kirsten Flipkens of Belgium during the first round of the 2010 U.S. Open at the USTA Billie Jean King National Tennis Center in New York. (Frank Franklin II / Associated Press)
Svetlana Kuznetsova of Russia serves the ball to Kimiko Date Krumm of Japan during the first round of the 2010 U.S. Open at the USTA Billie Jean King National Tennis Center in New York. (Kathy Willens / Associated Press)
U.S. player Melanie Oudin serves to Olga Savchuk, of Ukraine, during her first-round women’s singles match on the first day of the 2010 U.S. Open at the USTA Billie Jean King National Tennis Center in New York. Oudin won, 6-3, 6-0, to advance quickly to the second round. (Al Bello / Getty Images)
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French Open champion Francesca Schiavone, of Italy, advanced easily past Japan’s Ayumi Morita, beating her 6-1, 6-0 in 58 minutes. (Chris McGrath / Getty Images)
French tennis player Gaël Monfils reacts overcame Robert Kendrick of the U.S. in the first round, 3-6, 6-3, 6-4, 6-7, 6-4. (Emmanuel Dunand / AFP/Getty Images)