Venus Williams of the US (L) poses with her second place trophy following her WTA Championships final tennis match against her sister Serena at the Khalifa International Tennis and Squash Complex in Doha on November 1, 2009. Serena Williams won her second career WTA Championships title with a commanding 6-2, 7-6 (7/4) victory over sister Venus, a triumph which earned her a cool 1.55 million dollars. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US (L) speaks with the daughter of the Qatari Emir, Sheikha Hind bint Hamad al-Thani, after receiving her second place trophy following her WTA Championships final tennis match against her sister Serena at the Khalifa International Tennis and Squash Complex in Doha on November 1, 2009. Serena Williams won her second career WTA Championships title with a commanding 6-2, 7-6 (7/4) victory over sister Venus, a triumph which earned her a cool 1.55 million dollars. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US serves to her sister Serena during their WTA Championships final tennis match at the Khalifa International Tennis and Squash Complex in Doha on November 1, 2009. Defending champion Venus Williams and sister Serena are clashing for the 23rd time in their careers in the final of the 4.55 million dollar WTA Championships. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US serves to her sister Serena during their WTA Championships final tennis match at the Khalifa International Tennis and Squash Complex in Doha on November 1, 2009. Defending champion Venus Williams and sister Serena are clashing for the 23rd time in their careers in the final of the 4.55 million dollar WTA Championships. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US returns to her sister Serena during their WTA Championships final tennis match at the Khalifa International Tennis and Squash Complex in Doha on November 1, 2009. Defending champion Venus Williams and sister Serena are clashing for the 23rd time in their careers in the final of the 4.55 million dollar WTA Championships. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US returns to her sister Serena during their WTA Championships final tennis match at the Khalifa International Tennis and Squash Complex in Doha on November 1, 2009. Defending champion Venus Williams and sister Serena are clashing for the 23rd time in their careers in the final of the 4.55 million dollar WTA Championships. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US returns to her sister Serena during their WTA Championships final tennis match at the Khalifa International Tennis and Squash Complex in Doha on November 1, 2009. Defending champion Venus Williams and sister Serena are clashing for the 23rd time in their careers in the final of the 4.55 million dollar WTA Championships. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US serves to Serbia's Jelena Jankovic during their WTA Championships semi-final tennis match at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. TOPSHOTS/AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US (top) stands alert as her sister Serena returns the ball to Spain's Nuria Llagostera Vives and Maria Jose Martinez Sanchez during their WTA Championships semi-final doubles tennis match at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. The Spanish duo beat the Williams sisters 2-6, 6-4, 10-8. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Serena (R) and Venus Williams of the US attend their WTA Championships semi-final doubles tennis match against Spain's Nuria Llagostera Vives of Spain and Maria Jose Martinez Sanchez at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. The Spanish duo beat the Williams sisters 2-6, 6-4, 10-8. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Serena (R) and Venus Williams of the US attend their WTA Championships semi-final doubles tennis match against Spain's Nuria Llagostera Vives of Spain and Maria Jose Martinez Sanchez at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. The Spanish duo beat the Williams sisters 2-6, 6-4, 10-8. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US eyes the ball before returning it to Serbia's Jelena Jankovic during their WTA Championships semi-final tennis match at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. Williams won 5-7, 6-3, 6-4. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US reacts after winning the WTA Championships semi-final tennis match against Serbia's Jelena Jankovic at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. Williams won 5-7, 6-3, 6-4. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US waves at fans after winning the WTA Championships semi-final tennis match against Serbia's Jelena Jankovic at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. Williams won 5-7, 6-3, 6-4. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US celebrates after winning the WTA Championships semi-final tennis match against Serbia's Jelena Jankovic at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. Williams won 5-7, 6-3, 6-4. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US celebrates after winning the WTA Championships semi-final tennis match against Serbia's Jelena Jankovic at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. Williams won 5-7, 6-3, 6-4. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US celebrates after winning the WTA Championships semi-final tennis match against Serbia's Jelena Jankovic at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. Williams won 5-7, 6-3, 6-4. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Oracene Williams, mother of US tennis players Serena and Venus Williams, follows the latter's WTA Championships semi-final tennis match against Serbia's Jelena Jankovic at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US returns the ball to Serbia's Jelena Jankovic during their WTA Championships semi-final tennis match at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US serves to Serbia's Jelena Jankovic during their WTA Championships semi-final tennis match at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US eyes the ball before returning it to Serbia's Jelena Jankovic during their WTA Championships semi-final tennis match at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US returns the ball to Serbia's Jelena Jankovic during their WTA Championships semi-final tennis match at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US serves to Serbia's Jelena Jankovic during their WTA Championships semi-final tennis match at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US serves to Serbia's Jelena Jankovic during their WTA Championships semi-final tennis match at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US returns the ball to Serbia's Jelena Jankovic during their WTA Championships semi-final tennis match at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US eyes the ball before returning it to Serbia's Jelena Jankovic during their WTA Championships semi-final tennis match at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US returns the ball to Serbia's Jelena Jankovic during their WTA Championships semi-final tennis match at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US eyes the ball before returning it to Serbia's Jelena Jankovic during their WTA Championships semi-final tennis match at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US returns the ball to Serbia's Jelena Jankovic during their WTA Championships semi-final tennis match at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

Venus Williams of the US serves to Serbia's Jelena Jankovic during their WTA Championships semi-final tennis match at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)