Chael Sonnen: 'Dumb-Dumb' Floyd Mayweather Will Fight Again Because He's 'Broke'

Floyd Mayweather Jr. needs to fight again for financial reasons but will not be doing so in MMA, according to Bellator heavyweight Chael Sonnen.

"Floyd's not gonna do MMA, but he is gonna box again," Sonnen told TMZ Sports. "I will tell you unequivocally, right now, Floyd Mayweather does, and is planning, to box one more time."

"Floyd's broke. You've got to understand, the only thing more embellished than Floyd Mayweather's pay-per-view numbers is Floyd Mayweather's net worth, and he made a lot of money, but remember this: It does not matter what you made, it matters what you kept, and he is a dumb-dumb!"

Sonnen acknowledged Mayweather had received lucrative purses during his career, but the MMA fighter believes Mayweather has already burned through his fortune. Sonnen pointed to boxing greats Mike Tyson and Evander Holyfield as examples.

The former went bankrupt in 2003 despite raking in over $300 million during his career, while the latter had to sell his mansion and auction off many of his prized possessions after losing his $230 million fortune.

"Look, he's just not a very bright guy. He's surrounded with even less bright guys," Sonnen added.

Sonnen has doubted the likelihood Mayweather would switch sports for some time, although he admitted earlier this month he would relish the prospect of seeing him cross over into MMA:

Mayweather initially retired from boxing in 2015, having equalled Rocky Marciano's unbeaten 49-0 record.

Money came out of retirement last year to fight UFC star Conor McGregor in the latter's boxing debut. Per MMAjunkie's Fernanda Prates and John Morgan, after winning the fight to extend his record to 50-0, he said it would be his last venture into a boxing ring, adding, "You guys have my word."

In recent months, the 41-year-old has teased the possibility he may appear in the Octagon, however:

Mayweather's personal fortune has long been the subject of speculation, and the Associated Press (h/t USA Today) reported last year the boxer owed $22.2 million in taxes to the IRS ahead of his fight with McGregor, which Mayweather disputed.

The veteran's ostentatious displays of wealth on social media have continued, at any rate:

If the star were to come out of retirement, he'd likely need to fight someone who could realistically put his unbeaten record at risk to generate much interest, which he may be reluctant to do.

Despite his lack of MMA experience, a UFC fight would perhaps be the more lucrative option, as a crossover would likely attract more interest out of sheer curiosity if nothing else, even though it would be difficult to imagine him succeeding in such a contest.