Dominic Breazeale believes Deontay Wilder could be forced to consider retirement if he suffers a humiliating defeat in their WBC heavyweight title fight.
WBC champion Wilder makes his next title defence against Breazeale at the Barclays Center in Brooklyn next weekend, live on Sky Sports, and 'The Bronze Bomber' has vowed to add another explosive victory to his unbeaten 41-fight record.
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Breazeale rebuilt his career with three stoppage wins since a solitary loss to Anthony Joshua in 2016, but doubts that Wilder will want to remain in the sport if his reputation is severely damaged by defeat.
"I think he finds it humbling and I think it ends his career, it retires him," Breazeale exclusively told Sky Sports.
"A guy like Wilder, the surrounding that he has, he's not used to being down in the dumps and being a depressed individual.
"I think it cripples him, it sends him into some type of a depression and he never comes back to fight again."
Californian Breazeale will resume a heated rivalry with his fellow American at their final press conference, just a few months after the initial fiery exchanges at their first media gathering.
Breazeale has branded Wilder as a 'disgrace' following his aggressive antics in the past and feels he is a more fitting world heavyweight champion.
"He talks the talk, he tries to get you flustered so he can get on his high horse and build up his confidence," said Breazeale.
"I'm the wrong guy for that. I played quarterback for way too long and looked across the line at some of the biggest, baddest guys on the planet. For me it's in one ear and out the other, I'm just going to smile in his face."
A win for myself is a win for the world
Asked if he was a better role model, Breazeale added: "Hands down without a doubt. A win for myself is a win for the world.
"Nobody no longer wants to see Deontay Wilder as WBC heavyweight champion.
"He's a disgrace for not only American boxing, for heavyweight boxing in general."
Watch Deontay Wilder's WBC heavyweight title fight against Dominic Breazeale at the Barclays Center in Brooklyn, from 2am on Sunday May 19, live on Sky Sports Action and Sky Sports Main Event.