Jon Jones is officially retired. Tom Aspinall is the heavyweight champion of the UFC," White said Saturday in Baku, Azerbaijan. Jones had won the vacant heavyweight title in March 2023 with a , Jon Jones, 37, widely considered the greatest mixed martial artist of all time, has retired, UFC CEO Dana White announced on Saturday, and the heavyweight later confirmed the decision on social , "Jon Jones called us last night and retired," White said. Much of the disappointment surrounding Jones' retirement concerns both the UFC's enabling of the situation and the fact that White , Dana White announces Jon Jones’ retirement, elevates Tom Aspinall to undisputed UFC champion. During his press conference following the UFC’s debut event in Baku, Dana White officially , At Saturday’s UFC Baku post-fight press conference in Azerbaijan, UFC CEO Dana White delivered the news that heavyweight champion Jon Jones has retired at the age of 37., Jon Jones officially announced his retirement from UFC on Saturday night. "This decision comes after a lot of reflection, and I want to take a moment to express my deepest gratitude for the .