UFC 300 live results: Three title fights, Kayla Harrison debut

It's a historic night for the UFC as the Octagon returns to the T-Mobile Arena in Las Vegas for UFC 300, an action-packed card featuring a record 12 former or current UFC champions on the card, capped by three title fights. The main event sees UFC light heavyweight champion Alex Pereira making his first title defense against Jamahal Hill, a former champion who vacated due to injury before being able to defend it. There is added heat and a revenge factor to the fight as Hill beat Pereira's head coach and mentor, Glover Teixeira, for the title. In the co-main event, it will be the first-ever UFC title fight with two Chinese women as UFC women's strawweight champion Zhang Weili defends against Yan Xiaonan. Weili is coming off a title defense over Amanda Lemos in August while Xiaonan has won eight of her ten UFC bouts. The third title fight sees the ceremonial BMF Championship on the line in what could be an all-time classic as current title holder Justin Gaethje faces Max Holloway. UFC Hall of Famer Mark Colema