Venus Williams of the US returns the ball to Russia's Elena Dementieva during their WTA Tour Championships tennis match in Doha on October 27, 2009. AFP PHOTO/KARIM...

DOHA, QATAR - OCTOBER 25: (L-R) Serena Williams of United States, Svetlana Kuznetsova of Russia, Elena Dementieva of Russia, Victoria Azarenka of Belarus, Dinara Safina of Russia, Jelena Jankovic of Serbia, Caroline Wozniacki...

NEW YORK - SEPTEMBER 03: Elena Dementieva of Russia returns a shot against Melanie Oudin during day four of the 2009 U.S...

NEW YORK - SEPTEMBER 03: Melanie Oudin celebrates a point against Elena Dementieva of Russia during day four of the 2009 U.S. Open at the USTA Billie Jean...

NEW YORK - SEPTEMBER 03: Melanie Oudin returns a shot against Elena Dementieva of Russia during day four of the 2009 U.S. Open at the USTA Billie Jean...

Melanie Oudin of the US returns a shot against Elena Dementieva of Russia during their 2nd round US Open match at the USTA Billie Jean King National...

Melanie Oudin of the US reacts to a point against Elena Dementieva of Russia during their 2nd round US Open match at the USTA Billie Jean King National...

Elena Dementieva of Russia hits the ball against Melanie Oudin of the US during their 2nd round US...

Melanie Oudin of the United States, returns to Elena Dementieva of Russia, during the second round of the U.S. Open tennis tournament in New York...

Aug 23, 2009; Toronto, ON, Canada; Maria Sharapova (RUS) serves against Elena Dementieva (RUS) (not pictured) during their finals match of the Rogers Cup at the Rexall Centre. Dementieva...

Elena Dementieva of Russia serves during her victory over compatriot Maria Sharapova in the final of the Rogers...

Serena Williams returns the ball during her match against Elena Dementieva at the Rogers Cup at the Rexall Center on August 22, 2009 in Toronto, Ontario, Canada...

TORONTO, ON - AUGUST 22: Serena Williams of the United States reacts to a lost point against Elena Dementieva of Russia during the semifinals of the Rogers Cup at the Rexall Center on August 22...

...MEADOWS, UNITED STATES: Eighth seed Jennifer Capriati of the US makes a return to sixth seed Elena Dementieva of Russia during a women's semi-finals at the US Open in Flushing Meadows, New...

TORONTO, ON - AUGUST 23: Elena Dementieva of Russia celebrates her win over Maria Sharapova of Russia during the final of the Rogers...