When he boxed McGregor, they fought at 154 pounds.
And UFC president Dana White is certainly on board.
While Mayweather has written off returning from retirement to box again, he stated emphatically on Saturday night that, if he does return, it will be in the UFC's Octagon. "It is possible I do come back, but if I do come back, it has to be in the Octagon". "If I do come back, Showtime and CBS has to be involved".
But I spoke to Showtime, I spoke to CBS.
Mayweather, who has often used a retirement ruse as a way to sell tickets to his title fights, said people should know he is not serious when he says this will be his last time in the ring.
Several UFC fighters who were inside the vehicle were injured.
"But it has to be against Conor McGregor".
However, it is now doubtful if McGregor will be welcomed back into UFC after his attack, which threw UFC 223 into chaos. "A rampage that left two fighters injured at media day for UFC 223 has McGregor facing charges in NY".
Chelsea v West Ham United
In the 51st minute, Moses was presented with a big chance to put Chelsea two goals up from Morata's pass but blasted over the bar. Defeat would be West Ham's 1,000th loss in the top flight.
After his McGregor comment, Mayweather reverted back to typical self-boasting.
"I can do whatever I want to".
One thing Mayweather said was certain was that he is done boxing. Mayweather has cultivated a shoulder roll that has also served him well, eliciting comparisons to boxing greats George Benton and Archie Moore.
"When I do go to the Octagon, I look at going around 145". But will he be able to master techniques beyond his boxing skills? Since then, "Money" has repeatedly teased a foray into mixed martial arts, and has reportedly been training with UFC welterweight champion Tyron Woodley in preparation for such a move.
But Mayweather may not be done with fighting. Oddsmakers had listed McGregor as a -1,000 favorite and Mayweather the underdog at +650.
Floyd Mayweather is considering a comeback, but it won't be in the ring. "My kicking game, on a scale from one to 10, is probably a four". Both fighters walked away with record-setting paydays after Mayweather defeated the debut boxer via a tenth round TKO.
"There's a reason he's even talking about it: because the money is right", White told FOX Sports.
"He's a defensive master with his hands, doing all this stuff", White added.