Mike Tyson doesn't rate Floyd Mayweather. As a boxer and as a human being.
Mayweather, who boasts a perfect 50-0 professional boxing record, said he was the best ever. Better than the likes of Muhammad Ali and Tyson, who hit out at his claim in brutal fashion.
"He's very delusional," Tyson said.
"Listen, if he was anywhere near that realm of great as Muhammad Ali, he'd be able to take his kids to school by himself.
"OK, he can't take his kids to school by himself, and he's talking about he's great?
"Greatness is not guarding yourself from the people. 'It's being accepted by the people.
"He can't take his kids alone to school by himself. He's a little scared man. He's a very small, scared man."
Wow. No messing. Tyson going in on Mayweather.
Meanwhile, 'Money' made more money over the weekend.
He took on Japanese kick-boxer Tenshin Nasukawa and absolutely destroyed him inside one round.
Mayweather floored Nasukawa three times before earning a stoppage victory in what was billed as a 'exhibition bout'.
The 41-year-old pocketed a staggering $9,000,000 (£7.1 million) for nine minutes of work.
Despite being 'retired', a bout against Khabib Nurmagomedov continues to be talked about.
In fact, Mayweather is 'begging' for a fight versus the UFC lightweight king. Well, that's according to his manager Ali Abdelaziz.
"Me and him have been texting each other for the last month and if he says he did not, I'm gonna put everything on line. Do not lie, Floyd," he said.
He added: "He's very much begging for the fight. I told him, I said he's 57 years old, his body's weak, he's fragile, he's got a small head.
"People think I'm crazy but I think Khabib would beat his ass. He thinks Khabib is easy money but Khabib is much younger, much stronger, more tougher than Conor, a guy that went to the eleventh round with him. And Conor gave up, he's a quitter. Khabib is no quitter."
What's Mayweather's next move...? Watch this space.