Khabib Nurmagomedov Chokes Out Justin Gaethje, Retires After UFC 254

Khabib Nurmagomedov just RETIRED FROM MMA -- after choking out Justin Gaethje at UFC 254. Wow. Khabib essentially said he doesn't want to continue in the sport without his father, Abdulmanap Nurmagomedov, who passed away earlier this year after a…