Jon Jones Retires; Tom Aspinall Becomes Undisputed Champion

Jon Jones retired from mixed martial arts in June 2025, and the UFC elevated interim champion Tom Aspinall to undisputed heavyweight champion. Jones and Aspinall never fought: their proposed title unification bout was not booked.

Jones’ final fight

Jones last competed at UFC 309 on November 16, 2024, where he stopped Stipe Miocic in the third round to defend the heavyweight title. Afterward, negotiations for a fight with Aspinall did not produce an agreement. Jones later announced his retirement, ending the possibility of the matchup.

Aspinall’s title status

Aspinall’s elevation followed his interim-title win over Sergei Pavlovich and his defense against Curtis Blaydes. He later made his first defense as undisputed champion against Ciryl Gane at UFC 321; the bout ended as a no contest after an accidental eye poke. The status is distinct from the earlier speculation that Jones and Aspinall were scheduled to fight.

Related reporting and sources: Jon Jones · Tom Aspinall · UFC · MMA · https://www.mmausa.net/fighters/