9 / 12

>LOS ANGELES - NOVEMBER 15: (L-R) Maria Sharapova of Russia and Serena Williams pose together after Sharapova defeated Williams in the finals of the WTA Tour Championship Tournament at Staples Center on November 15, 2004 in Los Angeles, California. Sharapova won 4-6, 6-2, 6-4. (Photo by Robert Laberge/Getty Images)

>LOS ANGELES - NOVEMBER 15: (L-R) Maria Sharapova of Russia and Serena Williams pose together after Sharapova defeated Williams in the finals of the WTA Tour Championship Tournament at Staples Center on November 15, 2004 in Los Angeles, California. Sharapova won 4-6, 6-2, 6-4. (Photo by Robert Laberge/Getty Images)