Mayweather: I'll bet Maidana's purse I'll beat him

"If @ChinoMaidana is so confident, I'll bet him his purse that I'll beat him!" @FloydMayweather #Mayhem pic.twitter.com/YiUeiyGZxn — MayweatherPromotions (@MayweatherPromo) July 14, 2014 By Chris Williams: Floyd Mayweather Jr (46-0, 26 KOs) is so confident that he'll beat Marcos Maidana (35-4, 31 KOs) in their rematch on September 13th that he's willing to bet him […]