ADRIEN BRONER made a vulgar joke about Freddie Roach's Parkinson's illness during a press conference for his fight against Manny Pacquiao.
The outspoken American poked fun at the legendary trainer's condition during the event in Los Angeles.
Pacquiao has brought Roach back into his corner for the clash with Broner in Las Vegas on January 19.
Roach is one of the best trainers of his generation and suffers from Parkinson's, which causes him to shake.
At the LA press conference, Broner said to Pacquiao: "You bringing Freddie back? Nah, I don’t have nightmares.
“I’m happy he bringing Freddie back so we can get this thing shaking.”
The Filipino shrugged off the tasteless comment about his trainer, but was visibly annoyed by the joke.
Cocky Broner added: “This ain’t going to be no luck. I just feel like he can’t beat me. Look at my resume. What do I do to southpaws? I stop them.
“So going into this fight I’m very confident, he’s a southpaw and I’m going to do what I always do — dismantle him.”
Roach has been suffering with Parkinson’s disease for many years that he actively control’s through medication delivered with injections.
His doctors have stated in the past that the work he does with boxers helps his condition by staying active and in shape.
The Filipino great recently split with his trainer Roach before his last fight against Argentina’s Lucas Matthysse where Pacquiao managed to get his first knockout victory in nine years, picking up the WBA welterweight title.
He said: “Me and Freddie, we have a good relationship since 2001.
“We don’t have problems in terms of training, sharing our knowledge about strategy, techniques in training."