Logan Paul says he still hasn't been paid for the Floyd Mayweather fight.
The YouTuber got in the ring with the undefeated boxing legend last June, in what was one of the most hotly-anticipated events of the year.
Logan managed to make it through all eight rounds with Floyd, even catching him a couple of times.
And while he reportedly should have made around $20 million (£14.7m) from the fight, the 26-year-old says he still hasn't seen a dime of it.
In a post on Twitter, he shared a photo of an article reporting that Floyd had made so much money from the bout that he could now buy Jeff Bezos' jet.
He said: "Yeah because the dirty little rat hasn’t paid me yet lol. It’s been six months.
"But no worries @Floydmayweather, @KSI and I are going to make back the money you stole from me and more. January 4."
Replying to a comment from someone asking him what the score was exactly, Logan said he didn't have a clue.
He replied: "You think I know?"
Logan and KSI - who Logan fought twice in the past, drawing the first bout and losing the second - are set make a major announcement this week.
It's not clear yet quite what it is, but it's thought to be confirmation of a third boxing match between the pair.
A poster for tomorrow's announcement says: "The final chapter."
Sharing the announcement, Logan wrote: "This only ends one way."
But it's not just Logan who is making waves in the sport, his brother Jake has also made a fortune since stepping in the ring.
And after a handful of boxing fights behind him, he's looking to switch over the mixed martial arts.
The 24-year-old has promised to quit boxing if Dana White meets his demands.
The pair have been going back and forth in a war of words for months, with the UFC boss not taking the YouTuber's boxing career seriously.
And Jake has said on numerous occasions that he wants to get in the ring with another of Dana's fighters, having just knocked out ex UFC welterweight champion Tyron Woodley last month.
However, Dana has been reluctant to allow any of his stars to crossover to boxing to fight Jake.
But in his latest offering, Jake has said he will retire from boxing if White allows him to fight Jorge Masvidal in a UFC bout... Although Dana didn't seem to be up for the idea, saying Jake doesn't draw crowds like his fighters do.
Featured Image Credit: AlamyTopics: Sport, Boxing, Jake Paul, Logan Paul, YouTube, Dana White, UFC, US News
Dominic Smithers