Conor McGregor announces retirement from MMA

Conor McGregor during the UFC 202 ceremonial weigh-ins at the MGM Grand in Las Vegas, NV., Friday, August 19, 2016. (Photo by Hans Gutknecht/Los Angeles Daily News)
Khabib Nurmagomedov submits Conor McGregor to retain the title during UFC 229 at the T-Mobile Arena in Las Vegas, Nev. Friday, Oct. 6, 2018. (Photos by Hans Gutknecht, Los Angeles Daily News/SCNG)SoundThe gallery will resume insecondsKhabib Nurmagomedov submits Conor McGregor to retain the title during UFC 229 at the T-Mobile Arena i