By Radio Rahim

The fight is less than three weeks away. Andre Berto (30-3, 23KOs) will challenger WBC/WBA welterweight champion Floyd Mayweather Jr. (48-0, 26KOs) on September 12th at the MGM Grand in Las Vegas. Showtime Pay-Per-View will carry the card.

Berto is a sizeable underdog in the contest. Some bettering circles have Mayweather as high as an 80-1 favorite. Berto is 3-3 in his last six fights and his biggest win in the last few years has been Josesito Lopez.

In an ironic twist, the usually inactive Mayweather has actually been more active than Berto, who is averaging one fight per year since 2012. Mayweather fought twice in 2013, twice in 2014 and the fight with Berto will be his second of 2015.

Former champion and Golden Boy Promotions partner Bernard Hopkins is not completely overlooking the danger of Berto. If Mayweather believes the hype and takes his foot off the gas in training, it might open up the door for the former WBC/IBF champion to pull off one of the biggest upsets in boxing history.

"When I look at fights of this magnitude and people are giving one fighter no chance - most of the time it's legit. But I remind people, and I have nothing to do with this card with Mayweather and Berto as ya'll know - but I remind people before they bet something that they are going to regret......your mortgage, your personal hard earned money - that you have to go back to Mike Tyson and Buster Douglas," Hopkins told BoxingScene.com.

"It ain't what Berto is expected to do or not do, it's what Mayweather do or don't do. Mayweather is now in position to be his worst [enemy] if he's not taking Berto seriously. The burden is not on Berto, he has nothing to lose. But if Floyd Mayweather is not respecting who he's facing, he becomes more vulnerable. As they say, the defense attorney doesn't have the burden of proof - its the DA. Look at the DA as being Berto and Mayweather being the defense in defending his legacy, his title and his '0.'"