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. US & World Videos 1:20 Gigi Hadid wows in sweeping Met Gala look 1:52 Amanda Seyfried reveals her kids' reaction to her daring metallic Met Gala look 1:34 Nicole Kidman floored over Olivia Rodrigo's AMC ad tribute 3:45 Gabrielle Union and Dwyane Wade's daughter had cutest reaction to mom's Met Gala dress 1:12 Ariana Grande channels Glinda at 2024 Met Gala