NEW YORK - AUGUST 31: Maria Sharapova of Russia serves against Jarmila Groth of Australia during her women's singles first round match on day two of the 2010 U.S. Open at the USTA Billie Jean King National Tennis Center on August 31, 2010 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)
- NEW YORK - AUGUST 31: Maria Sharapova of Russia serves against Jarmila Groth of Australia during her women's singles first round match on day two of the 2010 U.S. Open at the USTA Billie Jean King National Tennis Center on August 31, 2010 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)
- NEW YORK - AUGUST 31: Maria Sharapova of Russia returns a shot against Jarmila Groth of Australia during her women's singles first round match on day two of the 2010 U.S. Open at the USTA Billie Jean King National Tennis Center on August 31, 2010 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)
- NEW YORK - AUGUST 31: Maria Sharapova of Russia reacts after a point against Jarmila Groth of Australia during her women's singles first round match on day two of the 2010 U.S. Open at the USTA Billie Jean King National Tennis Center on August 31, 2010 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)
- NEW YORK - AUGUST 31: Maria Sharapova of Russia reacts after a point against Jarmila Groth of Australia during her women's singles first round match on day two of the 2010 U.S. Open at the USTA Billie Jean King National Tennis Center on August 31, 2010 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)
- NEW YORK - AUGUST 31: Maria Sharapova of Russia celebrates after defeating Jarmila Groth of Australia during her women's singles first round match on day two of the 2010 U.S. Open at the USTA Billie Jean King National Tennis Center on August 31, 2010 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)
- NEW YORK - AUGUST 31: Maria Sharapova of Russia waves to the crowd after defeating Jarmila Groth of Australia during her women's singles first round match on day two of the 2010 U.S. Open at the USTA Billie Jean King National Tennis Center on August 31, 2010 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)
- NEW YORK - AUGUST 31: Maria Sharapova of Russia serves against Jarmila Groth of Australia during her women's singles first round match on day two of the 2010 U.S. Open at the USTA Billie Jean King National Tennis Center on August 31, 2010 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)
- NEW YORK - AUGUST 25: Maria Sharapova poses with kids during The Nike Primetime Knockout Tennis Event at Pier 54 on August 25, 2010 in New York, New York. Photo By Al Bello/Getty Images for Nike.
- NEW YORK - AUGUST 25: Maria Sharapova reacts during The Nike Primetime Knockout Tennis Event at Pier 54 on August 25, 2010 in New York City. (Photo by Al Bello/Getty Images)
- NEW YORK - AUGUST 25: John McEnroe, Roger Federer, Rafael Nadal, Maria Sharapova, and Victoria Azarenka appear at a press conference following The Nike Primetime Knockout Tennis Event at Pier 54 on August 25, 2010 in New York City. (Photo By Al Bello/Getty Images for Nike)
- NEW YORK - AUGUST 25: Maria Sharapova and actor Bradley Coooper team up to play a Pro/Celebrity Mixed doubles match during The Nike Primetime Knockout Tennis Event at Pier 54 on August 25, 2010 in New York City. (Photo By Al Bello/Getty Images for Nike)
- NEW YORK - AUGUST 25: Serena Williams, Actor Bradley Cooper, Maria Sharapova, New York Tennis League player Sami Ahmad, John McEnroe, and Roger Federer pose before playing in a Pro/Celebrity match during The Nike Primetime Knockout Tennis Event at Pier 54 on August 25, 2010 in New York City. (Photo By Al Bello/Getty Images for Nike)
- NEW YORK - AUGUST 25: Maria Sharapova reacts during The Nike Primetime Knockout Tennis Event at Pier 54 on August 25, 2010 in New York City. (Photo by Al Bello/Getty Images)
- NEW YORK - AUGUST 25: (L-R) Tennis player Serena Williams, actor Bradley Cooper, tennis player Maria Sharapova, New York Tennis League player Sami Ahmad, announcer John McEnroe and tennis player Roger Federer attend the Nike Tennis Primetime Knockout event at Pier 54 on August 25, 2010 in New York City. (Photo by Bryan Bedder/Getty Images)
- NEW YORK - AUGUST 25: Tennis player Maria Sharapova attends the Nike Tennis Primetime Knockout event at Pier 54 on August 25, 2010 in New York City. (Photo by Bryan Bedder/Getty Images)
- NEW YORK - AUGUST 25: Tennis players John McEnroe, Roger Federer, Rafael Nadal, Maria Sharapova and Victoria Azarenka attend a press confrence at the Nike Tennis Primetime Knockout event at Pier 54 on August 25, 2010 in New York City. (Photo by Bryan Bedder/Getty Images)
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