Anna Kournikova vs Maria Sharapova vs Caroline Wozniacki

Tuesday night’s “Biggest Loser” Season 11 finale hints at “a surprise announcement about Season 12.” Anna Kournikova is going to replace Jillian Michaels on “The Biggest Loser.”

Tennis star Anna Kournikova will join NBC’s popular weight-loss competition next season, a network spokesperson confirmed today. World number one Caroline Wozniacki crushed Japan's Kimiko Date-Krumm 6-0 6-2 to breeze into the second round. Read more Anna Kournikova vs Maria Sharapova vs Caroline Wozniacki: