The Russian ended McGregor’s attempt to win back the title when he sealed a brutal submission victory with a rear naked choke hold in the fourth round, which then sparked a mass brawl. Fights broke out in and around the cage, with a red-shirted fan landing several blows on McGregor before security intervened. The fight had been highlighted by bad blood between both camps, with McGregor pleading guilty in July as part of a deal with prosecutors to resolve charges over an April melee in which he attacked a bus the Russian was traveling on.