By Miguel Rivera

Trainer Ignacio "Nacho" Beristain says WBC/WBA junior middleweight champion Saul "Canelo" Alvarez (42-0-1, 30KOs) has been given the opportunity to become great - when he steps into the ring with Floyd Mayweather Jr. (44-0, 26KOs) on September 14th at the MGM Grand in Las Vegas. At the same time, Nacho doesn't believe Canelo will be able to penetrate the defense of Mayweather.

In 2009, Mayweather dominated Nacho's star pupil, Juan Manuel Marquez, for twelve rounds.

"[Canelo] has quality and now he has the opportunity to be great and show people that he is a top level fighter. In his fights, Floyd is a boxer who is totally on the defensive and that creates a lot of problems for his opponents. You think you can [beat him], but when you're face to face [with him] in the ring it's like the puzzle is written in Chinese," Nacho said.

"It is a great opportunity for [Canelo] to surprise the entire world, not just Mexico, but I don't think he will be able to deal with Mayweather's defensive style."