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McGregor's Coach Breaks Silence After Catastrophic UFC 329 Injury: "Doesn't Get Any Worse Than This

John Kavanagh expressed devastation after Conor McGregor's UFC 329 comeback ended in mere seconds due to a catastrophic knee injury sustained on his opening kick.

Editorial Team·Jul 13, 2026·3 min read
McGregor's Coach Breaks Silence After Catastrophic UFC 329 Injury: "Doesn't Get Any Worse Than This

Conor McGregor's highly anticipated return to the octagon turned into a nightmare at UFC 329 when a severe knee injury cut short his fight with Max Holloway before the opening round could truly develop.

McGregor came out aggressively from the opening bell, immediately launching a running switch kick that would prove fateful. The strike missed its target, and his right knee buckled badly on the awkward landing. Despite attempting to continue, the leg gave way repeatedly until the referee halted the contest—just over a minute into what was supposed to be a triumphant comeback after five years away.

Coach Addresses Injury Circumstances

Hours after the T-Mobile Arena bout concluded, longtime trainer John Kavanagh took to Facebook to express his reaction to the devastating turn of events.

> "Devastated. That opening jump switch kick was drilled daily for months, multiple times in warm up. Never an issue. Knee went when he threw the very first kick."

> "Doesn't get any worse than this. Looking forward to seeing my family in a few days."

The statement directly addressed speculation that McGregor entered the fight with a pre-existing knee problem. Both fighter and coach have maintained that his physical condition entering Saturday's bout was optimal.

Pre-Fight Condition Under Scrutiny

Video footage has surfaced showing McGregor appearing unsteady while removing his shoes cageside, and some warm-up clips display stumbling on the injured leg. However, extensive backstage footage from UFC 329 captures "The Notorious" moving dynamically, executing kicks and jumping without apparent difficulty.

Kavanagh's credibility on injury matters carries mixed weight. While he's previously overstated the quality of McGregor's camps, he has also acknowledged when legitimate pre-existing injuries contributed to defeats. Following McGregor's leg break against Dustin Poirier, Kavanagh revealed that doctors had discovered micro-fractures in his femur and advised against fighting.

Stark Contrast to Previous Comeback Loss

The UFC 329 disaster differs markedly from that Poirier encounter, where at least five minutes of intense action unfolded before the injury became decisive. This matchup against Holloway afforded fans virtually nothing—a scenario that leaves ticket holders and bettors feeling cheated.

For McGregor's camp to publicly acknowledge entering with a serious pre-existing injury would invite significant backlash from disappointed spectators and those who wagered substantial sums on the comeback fight.

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