Conor McGregor | Floyd Mayweather Rematch Floated for 2027 Under Zuffa Boxing
A second boxing match between Conor McGregor and Floyd Mayweather has been discussed again, with McGregor saying he remains open to a rematch. There is no signed agreement, event date, venue, weight, broadcast plan or formal Zuffa Boxing announcement for a 2027 fight.
Conor McGregor vs. Floyd Mayweather 2 in 2027
McGregor raised the possibility before UFC 329, telling TMZ Sports that conversations with Mayweather had continued and that he would be willing to fight him again. The timing is now uncertain after McGregor’s attempted UFC comeback ended in an injury stoppage against Max Holloway on July 11 in Las Vegas.
McGregor’s first fight in more than five years lasted 69 seconds. He threw an early jumping kick, landed on his right leg and appeared to injure his knee before referee Mike Beltran stopped the welterweight contest at 1:09 of round one. Holloway was awarded a first-round TKO victory due to injury.
Dana White said immediately after the fight that doctors believed McGregor may have suffered an ACL tear, though McGregor has not publicly disclosed a final diagnosis. McGregor later said he would have surgery, complete rehabilitation and return for the final bout on his current UFC deal.
Any plan for Mayweather would depend on McGregor’s surgery, recovery and whether he completes that UFC obligation first. His coach John Kavanagh said the knee had not been an issue in training, while McGregor said the injury came without warning.
A Zuffa Boxing event would be a logical commercial home if talks develop. Dana White’s boxing operation launched in January 2026 and is built around a UFC-style promotional structure, with plans for regular events and internal rankings. The company has worked with major names and is expanding its schedule, but neither Mayweather nor McGregor has been announced as a Zuffa Boxing signing or headliner.
The original Mayweather-McGregor bout remains a major reason a rematch keeps resurfacing. Mayweather stopped McGregor in the 10th round of their August 26, 2017 contest at T-Mobile Arena, handing the Irishman his first professional boxing loss. The event generated an official live gate of $55.4 million from 13,094 paid tickets, placing it among the biggest gates in Las Vegas boxing history.
Mayweather was 40 years old for the first fight and would be 50 in 2027, while McGregor would be 38. The age gap, McGregor’s fresh knee injury and the lack of a completed deal leave the proposed rematch as a rumor rather than a fight announcement. Still, the first event proved that their names can create attention far beyond standard boxing and MMA audiences.
