George Foreman is the latest boxing vet to sign up for The Contender, NBC's in-the-works reality series from executive producers Mark Burnett, Jeffrey Katzenberg and Sylvester Stallone. The grillmeister will help cast the 16 would-be Rockys and do some coaching during the training episodes. Foreman joins Sugar Ray Leonard, who last week signed on to play the show's adviser/mentor.