Conor McGregor's highly anticipated return to the UFC octagon was cut short on Saturday in Las Vegas after just 69 seconds, when an over-ambitious roundhouse kick led to a suspected severe knee injury.

UFC announcer and podcaster Joe Rogan described the move as "crazy," questioning McGregor's decision-making during his analysis of the fighter's TKO defeat to Max Holloway. Rogan suggested that McGregor, with concerns about his knee health, should have avoided such a high-risk maneuver.

"He tried a jumping roundhouse kick," Rogan stated. "If you don't land in a good way with the supporting way, you put so much pressure on that knee... he landed with his knee in the worst position."

Despite the injury, McGregor has asserted that he was not hurt entering the fight and that the injury was unexpected. "I had no injury / injuries going into the fight," he wrote on social media. "I was throwing kicks, planted and jumping, all throughout camp as well as backstage before the fight. This came out of nowhere. I am beyond dark here. I can only describe it as hell."

McGregor expressed a desire to continue fighting, even with the suspected ACL tear. "I was so sharp and so ready for this fight I cannot believe what has happened," he said after the bout. "The talk of me being off while walking in to the fight is nonsense. I was calm, ready, and confident. I am in shock [at] what has taken place. The devil is literally staring at me right in front of my face here. I am not engaging. I will be at church tomorrow."

UFC President Dana White confirmed that there were no visible signs of injury during the ceremonial weigh-in on Friday. "Five years off in this sport is rough," White commented. "We're assuming a blown ACL. That's what I assumed when I saw it, and that's what the doctors think, too."

McGregor's coach, John Kavanagh, shared his devastation on Facebook, noting that the jumping switch kick was a move practiced regularly. "Devastated. That Opening jump switch kick was drilled daily for months, multiple times in warm up," Kavanagh wrote. "Never an issue. Knee went when he thru the very first kick. Doesn't get any worse than this."

This setback follows a five-year period where McGregor was largely absent from the UFC due to a broken leg, a broken toe, missed drug tests, and legal issues. In November 2024, he was found liable in a civil trial for sexual assault and ordered to pay €250,000 in damages, allegations he has denied.