Conor McGregor has slammed Floyd Mayweather over his "embarrassing" brawl with Jake Paul.
The undefeated boxing legend and YouTuber clashed in a heated row as they discussed a potential fight.
Paul grabbed Mayweather's hat, leading to the 50-0 fighter wrestling him to the ground.
McGregor, who lost to Mayweather in a 2017 boxing bout and who has been called out on numerous occasions by Paul, was quick to react to the video.
The Notorious, who is currently in Dubai ahead of his trilogy fight with Dustin Poirier, said: "What the f*** is Floyd at? The kid curled up, didn't fight back once, and Floyd is still running around acting the tough guy.
"The kid actually just pulled this shambles of a situation Floyd is in out of the drain for him. He should thank him. It's embarrassing! Pro to pro it's embarrassing."
Mayweather was in Miami to promote his exhibition bout with Paul's older brother Logan which will take place over six rounds on June 6.
The retired pound-for-pound great has claimed he will earn $100m from the fight - but McGregor disagreed.
He added: "He will not scratch $10m for this fight and he knows it. It was cancelled once already. The world is watching this on Twitter.
"He'd fight a half decent pro and command $20m upwards, yet it's this s***. Whatever way you spin this, it's sad. Fight someone for real, on your record, or f*** off mate. Slap head!"
McGregor faces Poirier for a third time on July 10 after suffering a shock loss to him back in January.
And the Dubliner has vowed to put in a brilliant performance at the T Mobile Arena in Las Vegas.
He tweeted on Thursday: "July 10th I will do this absolutely flawlessly. We have these clowns sussed and fully! They wanna play a game of tactics? No problem, see you in there. You’ve awoken a beast. A beast with the backing of a much higher power! Say your prayers."
