Stipe Miocic Retires At UFC 309 Former UFC heavyweight champion Stipe Miocic announced his retirement from MMA at UFC 309. The most accomplished UFC heavyweight of all time went out on a loss to the undisputed GOAT Jon Jones. Miocic, 42, announced his retirement in his UFC 309 octagon interview. “I’m done,” Miocic said. “I’m … Continue reading Stipe Miocic Retires At UFC 309