Max Holloway became the only third fighter to win the 'Baddest Motherf**ker' title after he knocked out Justin Gaethje at UFC 300 in Las Vegas on Saturday night. At the buzzer in Round 5, Holloway landed a right hand on Gaethje's face, and UFC fighters including Israel Adesanya, Ilia Topuria, and others gave an astonishing reaction to the explosive knockout.