December 15, 2011 11:38 am Anna Kournikova Leaves “Biggest Loser” After Just One Season Retired tennis pro, Anna Kournikova, will leave “The Biggest Loser” after only one season. The show will continue with trainer Bob Harper and host Alison Sweeney. Local 1:37 Pro-Palestinian protesters gather outside White House correspondents' dinner 2:05 How ‘Love Is Blind' made Vanessa Lachey and Nick Lachey's marriage stronger 0:44 At least 5 shot along Connecticut Avenue in Dupont Circle 1:36 O.J. Simpson's cause of death revealed 2:36 Super dad makes Mario-themed obstacle course for son's birthday