Despite many believing that Berto was the wrong choice and will be an easy night for Mayweather, Espinoza is adamant that the Haitian-American will be a worthy opponent for Mayweather’s final career bout on September 12.
“Andre Berto has a chance to make history himself. If he does that, nothing else will matter. Berto will become known as the guy who finally beat Floyd Mayweather,” said Espinoza.
“One thing we know about Andre Berto, he’s never lacked for action. There’s only one way he knows how to fight and that’s all out aggressive.
“I’ve seen what Andre can do in the ring, I’ve seen him fight round after round. Fighters like Andre Berto will always be welcome because no one fights harder than Andre Berto.”
Berto, 31, has lost three of his last six bouts, two against opponents Mayweather has already defeated and was chosen ahead of number one contender Amir Khan and compatriot Karim Mayfield for the MGM Grand pay-per-view.
Briton Khan was the obvious choice on paper, but now has to go back to the drawing board after losing out for a third time, having already turned his attention to an intriguing clash with former training partner Manny Pacquiao.