Jon Jones relinquished the UFC heavyweight title and opted to retire. The former two-division UFC champion informed the fight promotion of his decision and interim titleholder Tom Aspinall was elevated to undisputed champion status. UFC matchmakers were working to book a title unification bout between Jones and Aspinall when the 37 year-old Jones made the final decision to walk away. Jones turns 38 on July 19.
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Holly Holm weighs in on teammate Jon Jones’ retirement – MMA Weekly