Hall of Fame boxing trainer Freddie Roach dropped another bomb on his former strength and conditioning coach Alex Ariza, as he indirectly linked him to possible use of performance enhancing drugs in the sport.

Roach, whose relationship with Ariza becomes much bitterer ever since the conditioning coach's breakup with Manny Pacquiao's camp, told Fight Hype that he's a little bit suspicious about Ariza's works, calling him a little bit shady.

"I know he has a new strength coach and I don't get along with the guy, and one of the reasons why he doesn't work for me anymore is because I think he's a little shady, you know," Roach told Fight Hype.

The legendary trainer also revealed that he used to give Pacquiao a suspicious drink before he starts training. Roach also said he was not surprised at all to learn the Rios failed his drug test following his 12-round unanimous decision loss to the Pacman.

"He used to give Manny a drink every day before we worked out and I asked him, 'What's in that drink,' and he would never tell me. And I said, 'I need to know what's in that drink because, you know, you're giving it to my fighter and if something goes wrong, I'm gonna get the blame.' In my opinion, he's a little shady, so he's with that camp now and it doesn't surprise me that happened."

Roach said Ariza's presence in Robert Garcia's corner during Marcos Maidana's victory over Adrien Broner is questionable, because strength and condition coach don't usually roam in the boxer's corner.

"Everyone has their suspicions there because it's very unusual for the strength coach to be that close to the fighter. I mean, usually a cutman will work on a cut; that's a possibility. But he's very forceful. I was surprised Robert Garcia let him in the corner actually, because in Macau, he didn't even let him work the corner," Roach said.

Roach, who is expected to train Pacquiao for his upcoming bout on April 12 against a still unknown opponent, said there should be a thorough investigation on Ariza's alleged use of smelling salts in between rounds during the Maidana vs. Broner fight.

"They say there's an investigation going on and so forth. He has Dr. Recta (sp), who gives him prescriptions all the time. They're looking up the wrong tree if they're looking at Alex Ariza. They need to find out where that came from because I believe, in my opinion, it was something illegal because smelling salts are illegal in boxing. Was it maybe that or something stronger?," Roach said.

For more Boxing News, read more at IBT Sports