The 31 year-old, who himself made five defences of the WBC title plus added the IBF belt for good measure, knows he has nothing to lose going into the September 12 pay-per-view bout and believes his artillery can give Mayweather plenty of problems.
“We’re here. It’s my time to see him. He can have his ‘MayVinci’ code because we put in the work. The whole team is confident. I’m going to do what I do,” Berto said.
“We worked on a lot of different things at camp. I have the speed to keep up with him. I have more power.
“The thing with Floyd is, most guys he fights aren’t as athletic as he is. But I am.
“If you come at Floyd fast but don’t have a plan and don’t have good footwork, it’s too easy for him. If you have a guy that’s as athletic as him, it gives him problems.
“There is a lot more to me than just walking guys down. I have speed, I have power, I have a crazy uppercut, I can move to the side. There are a lot of ways I can get it done.”
Berto has been ridiculed in some quarters whilst being made a massive outsider by the bookies to pull off the shock victory. Despite this, the challenger has kept his head down and concentrated solely on training for the fight, which he hopes will be enough to make those doubters eat their words.
“All the hard work we’re putting in, it’ll all pay off fight night. It’s not just for me. I’ve been through doing things for me. I see what’s real now,” he stated.
“I’ve prepared myself mentally to be in this position. People can say whatever they want. We’re focused.
“This is going to be for everyone who believes in the underdog,” added Berto.