
The United States Anti-Doping Agency (Usada) will end its partnership with the UFC in January after Conor McGregor’s return to its testing pool this week, claiming that the saga has made the organisations’ relationship ‘untenable’.
Usada announced on Wednesday (11 October) that McGregor had re-entered its testing pool, as the former champion prepares for his first fight since July 2021, when he suffered a broken leg in a second straight loss to Dustin Poirier.