It seems that Conor McGregor is once again in the United States Anti-Doping Agency (USADA) testing pool. McGregor took to his X account to share a message, seemingly from USADA, welcoming him back to the testing pool. The message reads, “Dear Conor McGregor, the United States Anti-Doping Agency (USADA) would like to take a moment to welcome you back as a member of the UFC Registered Testing Pool (RTP).” Conor McGregor Ken Pishna, MMA Weekly Last week, McGregor announced that he had actually submitted paperwork to return to the testing pool. It seems his claim was truthful. Now, McGregor must undergo six months of regular testing before being allowed to fight again.