"I'm ready to get back in the ring on Sept. 12 and prove again to the whole world why I'm the best ever," Mayweather told Dan Rafael of ESPN.com. "I always bring my A-game, and this fight against Andre Berto is no exception. He's a young, strong fighter who is hungry to take down the best. Forty-eight have tried before, and on Sept. 12, I'm going to make it 49."
Mayweather, 48-0, is coming off his victory over Manny Pacquiao in one of the most hyped fights in boxing history and certainly the most lucrative. Berto is certainly a much less iconic opponent, though the fighter is 30-3 and a two-time welterweight champion.