UFC 309 saw the return of heavyweight champion Jon Jones, who successfully returned from a 20-month layoff to defend his title with a third-round TKO of Stipe Miocic, who was coming off an even longer layoff of more than three-and-a-half years. The fight headlined the pay-per-view event at Madison Square Garden in New York.

UFC 309 in Madison Square Garden saw perhaps the most accomplished Ultimate Fighting Championship heavyweight of all-time, Stipe Miocic, take on arguably the greatest mixed martial artist of ever and reigning heavyweight king,