Former UFC heavyweight champion Jon Jones, who retired two weeks ago, has re-entered the USADA testing pool, suggesting a potential return to fighting. This unexpected move comes after Jones vacated the title, leaving interim champion Tom Aspinall as the undisputed champion. UFC rules require a six-month testing period before competition, indicating a possible return for Jones in 2026. His decision ends months of speculation surrounding a highly anticipated fight with Aspinall.

Prepared by Emily Rhodes and reviewed by editorial team.