Elena Dementieva of Russia serves to Svetlana Kuznetsova of Russia during their WTA Championships tennis match at the Khalifa International Tennis and Squash Complex in Doha on October 30, 2009. Kuznetsova won the match 6-3, 6-2. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Elena Dementieva of Russia returns to Svetlana Kuznetsova of Russia during their WTA Championships tennis match at the Khalifa International Tennis and Squash Complex in Doha on October 30, 2009. Kuznetsova won the match 6-3, 6-2. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Elena Dementieva of Russia returns to Svetlana Kuznetsova of Russia during their WTA Championships tennis match at the Khalifa International Tennis and Squash Complex in Doha on October 30, 2009. Kuznetsova won the match 6-3, 6-2. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Elena Dementieva of Russia returns to Svetlana Kuznetsova of Russia during their WTA Championships tennis match at the Khalifa International Tennis and Squash Complex in Doha on October 30, 2009. Kuznetsova won the match 6-3, 6-2. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Elena Dementieva of Russia returns to Svetlana Kuznetsova of Russia during their WTA Championships tennis match at the Khalifa International Tennis and Squash Complex in Doha on October 30, 2009. Kuznetsova won the match 6-3, 6-2. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Elena Dementieva of Russia returns to US Serena Williams during their WTA Championships tennis match in Doha on October 29, 2009. Williams cruised into the semi-finals after beating Dementieva 6-2, 6-4. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Elena Dementieva of Russia returns to US Serena Williams during their WTA Championships tennis match in Doha on October 29, 2009. Williams cruised into the semi-finals after beating Dementieva 6-2, 6-4. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Elena Dementieva of Russia returns to US Serena Williams during their WTA Championships tennis match in Doha on October 29, 2009. Williams cruised into the semi-finals after beating Dementieva 6-2, 6-4. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Elena Dementieva of Russia returns to US Serena Williams during their WTA Championships tennis match in Doha on October 29, 2009. Williams cruised into the semi-finals after beating Dementieva 6-2, 6-4. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Russia's Elena Dementieva waves at fans after beating Venus Williams of the US during their WTA Tour Championships tennis match in Doha on October 27, 2009. Dementieva staged a remarkable comeback to defeat the title-holder 6-3, 6-7 (6/8), 6-2. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Russia's Elena Dementieva celebrates after beating Venus Williams of the US during their WTA Tour Championships tennis match in Doha on October 27, 2009. Dementieva staged a remarkable comeback to defeat the title-holder 6-3, 6-7 (6/8), 6-2. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Russia's Elena Dementieva eyes the ball before returning it to Venus Williams of the US during their WTA Tour Championships tennis match in Doha on October 27, 2009. Dementieva staged a remarkable comeback to defeat the title-holder 6-3, 6-7 (6/8), 6-2. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Russia's Elena Dementieva returns the ball to Venus Williams of the US during their WTA Tour Championships tennis match in Doha on October 27, 2009. Dementieva staged a remarkable comeback to defeat the title-holder 6-3, 6-7 (6/8), 6-2. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Russia's Elena Dementieva returns the ball to Venus Williams of the US during their WTA Tour Championships tennis match in Doha on October 27, 2009. Dementieva staged a remarkable comeback to defeat the title-holder 6-3, 6-7 (6/8), 6-2. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Elena Dementieva of Russia attends the draw for the WTA Championships at the Museum of Islamic Art in the Qatari capital Doha on October 25, 2009. The 1.55-million-dollar championship willl take place in Doha between October 27 and November 1. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Elena Dementieva of Russia hits a return against Agnieszka Radwanska of Poland during a quarter-final match of the China Open 2009, at the National Tennis Center in Beijing on October 9, 2009. Radwanska beat Dementieva 7-5, 6-3. AFP PHOTO/FREDERIC.J BROWN (Photo credit should read FREDERIC BROWN/AFP/Getty Images)

Elena Dementieva of Russia hits a return against Agnieszka Radwanska of Poland during a quarter-final match of the China Open 2009, at the National Tennis Center in Beijing on October 9, 2009. Radwanska beat Dementieva 7-5, 6-3. AFP PHOTO/FREDERIC.J BROWN (Photo credit should read FREDERIC BROWN/AFP/Getty Images)

Elena Dementieva of Russia hits a return against Agnieszka Radwanska of Poland during a quarter-final match of the China Open 2009, at the National Tennis Center in Beijing on October 9, 2009. Radwanska beat Dementieva 7-5, 6-3. AFP PHOTO/FREDERIC.J BROWN (Photo credit should read FREDERIC BROWN/AFP/Getty Images)

Elena Dementieva of Russiahits a return against Agnieszka Radwanska of Poland during a quarter-final match of the China Open 2009, at the National Tennis Center in Beijing on October 9, 2009. Radwanska beat Dementieva 7-5, 6-3. AFP PHOTO/FREDERIC.J BROWN (Photo credit should read FREDERIC BROWN/AFP/Getty Images)

Elena Dementieva of Russia returns a shot against Melinda Czink of Hungary during the second round match at the China Open 2009 in Beijing on October 6, 2009. Dementieva won 6-4, 6-3. AFP PHOTO/LIU Jin (Photo credit should read LIU JIN/AFP/Getty Images)

Elena Dementieva of Russia returns to Kateryna Bondarenko of Ukrine during their women's singles second round match at the Pan Pacific Open tennis tournament in Tokyo on September 29, 2009. AFP PHOTO/Kazuhiro NOGI (Photo credit should read KAZUHIRO NOGI/AFP/Getty Images)

Elena Dementieva of Russia hits the ball against Kateryna Bondarenko of Ukraine during their women's singles second round match at the Pan Pacific Open tennis tournament in Tokyo on September 29, 2009. AFP PHOTO/Kazuhiro NOGI (Photo credit should read KAZUHIRO NOGI/AFP/Getty Images)