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McGregor Accused of Using Banned Substances During Rehab
12 Jun
Summary
- Report alleges McGregor used banned performance enhancers during leg injury recovery.
- Surgeon supported a therapeutic use exemption that was not granted.
- Allegations linked to UFC's past dispute with USADA.

Recent allegations suggest that Conor McGregor may have utilized banned performance-enhancing substances during his recovery from a significant leg injury sustained in 2021. The investigation indicates that McGregor allegedly took prohibited drugs following a broken tibia and fibula.
Sources claim that a renowned orthopaedic surgeon, who oversaw McGregor's surgery, supported an application for a therapeutic use exemption. This exemption would have permitted the use of otherwise banned substances, but it was reportedly never granted.
McGregor's manager stated that his recovery involved extensive medical treatment under specialist supervision after an injury that threatened his career. The fighter's dramatic physical transformation during this period had previously sparked widespread speculation.
The investigation also detailed how McGregor's situation allegedly exacerbated tensions between the UFC and USADA, preceding the UFC's decision to end its partnership with the anti-doping agency in late 2023. McGregor had withdrawn from the UFC's testing pool during his recovery.
Anti-doping officials reportedly learned McGregor had taken banned substances while outside the testing pool as he began the process of re-entering the program. McGregor is currently facing an 18-month suspension for violating UFC anti-doping rules, with his return to competition scheduled for next month in Las Vegas.