As previously reported, trainer Floyd Mayweather Sr. made some rather controversial comments during a recent interview with the Grand Rapids Press. He alleged that pound-for-pound king Manny Pacquiao was likely taking illegal supplements. He said the supplements were contributing factors to Manny's success in the ring. The comments created outrage among boxing fans.

"I believe he's on some type of supplements. I'm convinced about a lot of (boxers)," Mayweather Sr. said. "That's what they're doing right now. Everybody should be checked a little bit more thoroughly. Sometimes people know what's going on but they ain't saying nothing. I don't think he can beat Lil' Floyd with steroids in him or not. He don't have that kind of talent. He don't have that kind of skill, whatever he has in him.

"I think they're pushing Pacquiao a little too much, even if he's got 'roids in his body. The steroids aren't going to make him no faster. It's going make him relentless and hit strong, but that's it. It ain't going to put no knowledge in your head."

Pacquiao's trainer Freddie Roach spoke with AOL FanHouse and blasted Mayweather Sr. over the comments. Roach and Floyd Sr. have been rivals for the last few years. Mayweather trained Ricky Hatton for the May bout with Pacquiao, which the Filipino fighter won in two rounds with a knockout.

"Well, we have taken him a couple of times to be tested, and we haven't tested positive yet. I think he's wrong, but all Manny's on is white rice. Steroids? Where in the hell did that come from? You know, these guys, they had to come up with a reason why they lost. They lost because [Floyd Sr.] sucks as a trainer and I had the better fighter," Roach said.

Pacquiao denied any type of steroid use. He said a lot of boxers may be using steroids but he is not one of them.

"Maybe all of them -- they're using the steroids, and not me," said Pacquiao. "You know what? I don't even know what a steroid is. I've never done that."