In 1973, legendary retired tennis player Bobby Riggs challenged two of the top female tennis players to a game. In Fall 1973, Riggs faced Billie Jean King - who was at the top of her game - and lost. Fast forward to 2013. ESPN investigative reporter Don Van Natta Jr. published a wild story about gambling, the mob, and a man who had kept a secret for 40 years - all about Bobby Riggs rigging that fateful Battle of the Sexes. Hosted by Maria McNamara and Chris Coakley. Produced by Chris Coakley.