9. Bobby, Bille and the Battle That Never Was
In 1973, Bobby Riggs challenged Billie Jean King to a Battle of the Sexes tennis match and lost, perhaps on purpose. He had summarily defeated Margaret Court, the top female tennis player in the world at the time, in straight sets, leading some viewers to conclude that he must have gambled against himself in the subsequent match to King. Reinforcing this theory is the fact that Riggs often chose not to chase after King's shots. Riggs denied the rumors, stating: "She outplayed me."