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This content was machine-translated from the French version.
Conor McGregor's return to the octagon lasted sixty-nine seconds. On July 12 in Las Vegas, the biggest star in MMA history collapsed after planting his left leg against Max Holloway. Two weeks later, the diagnosis was unequivocal: a torn anterior cruciate ligament and a torn medial meniscus. Operated on in Los Angeles, the 38-year-old Irishman has already set a target: summer 2027 for what he describes as his last fight.
UFC 329, an evening that turns in one minute
McGregor hasn't fought since July 2024, and his return is the UFC's event of the year.
The T-Mobile Arena in Las Vegas is sold out. McGregor hasn't fought since July 2024, and his return is the UFC's event of the year. Across from him, Max Holloway, the featherweight champion, whom he had dominated by unanimous decision thirteen years earlier in Boston. From the opening exchanges, the Irishman looks mobile and dangerous. He lands a left straight, looks for an opening, then throws a middle kick. His left knee gives way on the landing. Herb Dean stops the fight immediately. Holloway is declared the winner by technical TKO.
"I am beyond darkness," McGregor wrote on his social media after the full diagnosis was announced on July 19. Medical imaging revealed injuries far more severe than the clinical examination on fight night had suggested.
A complete knee reconstruction
The surgical procedure, entrusted to Dr. Neal ElAttrache, combined an ACL reconstruction with a graft and a meniscal suture. The standard protocol for this type of operation requires nine to twelve months of rehabilitation before any full return to activity. McGregor posted a photo from his hospital bed, his left leg immobilized in a brace, accompanied by a terse comment: "Summer 2027. Last dance."
The reference to Michael Jordan's documentary was not lost on anyone. McGregor, who has amassed a fortune estimated at over $200 million between his sports career, his whiskey distilleries, and his investments, frames his exit as a final chapter. At 38, with a knee operated on for the third time, the biological clock is ticking.
Holloway, the loop to close
The choice to keep Holloway as the opponent for this farewell fight is far from trivial. In August 2013, a 25-year-old McGregor dominated the Hawaiian at the TD Garden in Boston and launched what would become the most lucrative career in MMA history. Returning, thirteen years later, against the same man, would carry a symbolic weight that few athletes can claim. Holloway, still the featherweight titleholder, said after UFC 329 that he would accept a rematch if McGregor returned to his best physical level.
The champion is expected to defend his title by the end of 2026. If McGregor sticks to his rehabilitation schedule, a window in summer 2027 seems plausible.
An untouchable legacy, regardless of what follows
The first fighter in UFC history to hold two belts simultaneously, McGregor pushed MMA into another dimension. His nights against José Aldo — dispatched in thirteen seconds —, Nate Diaz, Eddie Alvarez, and Khabib Nurmagomedov belong to the heritage of combat sports. His lightning defeat against Holloway changes none of that. The question weighing on the community, however, is whether a knee reconstructed for the third time will allow anything more than an exhibition fight.
McGregor has never been more effective than when he was written off. Summer 2027 will provide the answer that July 12, 2026 left hanging.
