Former tennis player-turned-model Anna Kournikova has signed on to put heavyweights through their paces in the new season of US reality show ‘The Biggest Loser’.
Kournikova, who is the longtime girlfriend of singer Enrique Iglesias, will be one of the show's trainers, reports dailystar.co.uk. The 29-year-old will reportedly join fitness experts Cara Castronuova and Brett Hoebel in the programme.