By Salvador Rodriguez

WBA welterweight champion Marcos Maidana (35-3, 31KOs) is expected the toughest fight of his entire career on May 3rd, but he still firmly believes he will pull off the upset of all upsets with a victory over WBC champion Floyd Mayweather Jr. (45-0, 26KOs) at the MGM Grand in Las Vegas. Maidana is heavy underdog. He's riding a very good run of wins, which include last December's unexpected twelve round decision win over previously undefeated Adrien Broner.

"I know I'm in a difficult fight and beating Mayweather is no small task, so we are training hard on speed, technique, and defense. I'm focused on improving everything so we have more chances to win. I also know that I can not measure my chances by what happened with Broner, because Mayweather is much better than that. Everyone, at some point in life, we ​​have to lose - and it's time for him to lose. This is a fight that can change my career, but mostly my life," said Maidana.