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McGregor Sidelined Through Summer 2027 After Knee Surgery

Jose Aldo urged dietary re-education to push McGregor back to lightweight so he could rapidly affect the open 155-pound title picture.

Overview

  • McGregor tore his ACL and damaged his meniscus seconds into his July rematch with Max Holloway and underwent knee surgery in August, leaving him expected to be out until at least summer 2027.
  • Jose Aldo told MMA Fighting on Sept. 29 that McGregor should pursue 'dietary re-education' to return at 155 pounds, arguing the lightweight division is now wide open after recent shifts.
  • McGregor’s coach John Kavanagh previously said 170 pounds is a more comfortable weight for the fighter now and that cutting to 155 would require a clear, compelling reason.
  • A move back to lightweight would carry both sporting and commercial stakes because McGregor’s star power could quickly reorder contenders in a division that lost momentum when Ilia Topuria moved up.
  • Beyond the belt picture, the story centers on McGregor’s physical and psychological recovery, with sources noting rehab timelines, cautious optimism from McGregor, and the need for careful planning before any return.