Conor McGregor Leads UFC Fighters In Anti-Doping Testing Following Suspension

Conor McGregor has been tested more times by the UFC's anti-doping program than any fighter on the roster so far this year.

McGregor was suspended for 18 months in 2024 after failing to report his whereabouts for testing, retroactive to the point of his failure, and was officially free of that suspension in March. 

All while rumors continue to circulate about when and where he will be making his return to the cage. McGregor himself had said he was being eyed for a return over the summer, and it was later reported by Ariel Helwani that he was being targeted for the July 11 UFC 329 card, part of International Fight Week. 

Regardless, McGregor is certainly doing everything he can to prove he is clean and ready to return to the Octagon, having tested eight times so far this year, per the UFC anti-doping program's website. That is more than the seven times he tested throughout 2025 in total, as well as twice the amount of any other fighter on the roster, reflecting an additional scrutiny on the Irishman. 

He last fought in 2021, losing back-to-back fights to Dustin Poirier, the latter of which seeing him break his ankle on a checked leg kick to cause a doctor stoppage. Prior to that, he had fought to a 40 second victory over Donald Cerrone in 2020 to mark a return from his 2018 submission defeat to Khabib Nurmagomedov. 

Editor's note: This article previously named the United States Anti-Doping Agency as having tested Conor McGregor, rather than the UFC's own in-house program. The UFC officially ended its partnership with USADA on January 1, 2024, after eight years of partnership. The UFC replaced USADA with its own in-house program managed by CSAD and Drug Free Sport International.