US tennis player Serena Williams returns a shot to Slovakia's Daniela Hantuchova during their US Open fourth round match at the USTA Billie Jean King National Tennis Center...

Serena Williams of the US plays against Daniela Hantuchova of Slovakia on the seventh day of the 2009 Wimbledon Tennis Championships at the All England...

Serena Williams of U.S. plays a return to Daniela Hantuchova of Slovakia during their fourth round singles match at Wimbledon, Monday, June 29, 2009. (AP Photo...

...embrace after victory in their women's doubles final match against Ai Sugiyama of Japan and Daniela Hantuchova of Slovakia at the Australian Open tennis tournament in Melbourne on January 30, 2009. The Williams...

STUTTGART, GERMANY - OCTOBER 01: Daniela Hantuchova of Slovakia serves the ball to Vera Zvonarewa of Russia during the Porsche Tennis Grand Prix...

Daniela Hantuchova of the Slovak Republic serves to Anna-Lena Groenefeld of Germany during their match at the...

...his emotion during her Women's Singles fourth round match between Serena Williams of USA and Daniela Hantuchova of Slovakia during day seven of the Wimbledon Lawn Tennis Championships at the All England Lawn...

...ENGLAND; Serena Williams (USA) screams in pain after being injured during her 4th round match against Daniela Hantuchova (not pictured) during the 2007 Wimbledon Championships at the All England Tennis Club. Mandatory Credit: Sportsbeat...

Serena Williams, her calf bandaged following a cramp, reacts as she plays Daniela Hantuchova, during a Women's Singles match on the Centre Court at Wimbledon, Monday, July 2, 2007...

...at the Indian Wells Tennis Gardens in Indian Wells, CA. 3)INDIAN WELLS, CA - MARCH 14: Daniela Hantuchova of Slovakia returns a backhand in her win over Angela Haynes during the Pacific Life Open...

Daniela Hantuchova of Slovakia poses with her trophy and her country's flag after defeating Svetlana Kuznetsova of...

...AUSTRALIA - JANUARY 24: Ana Ivanovic of Serbia plays a forehand during her semi-final match against Daniela Hantuchova of Slovakia on day eleven of the Australian Open 2008 at Melbourne Park on January 24...

Serbia's Ana Ivanovic returns to Slovakia's Daniela Hantuchova in their Women's semi final match at the Australian Open tennis tournament in Melbourne, Australia...

MELBOURNE, AUSTRALIA - JANUARY 23: Daniela Hantuchova of Slovakia plays a forehand during her quarter-final match against Agnieszka Radwanska of Poland on...

Slovakia's Daniela Hantuchova celebrates after beating Poland's Agnieszka Radwanska during their Women's singles quarter final match at...