Arman Tsarukyan has been forced out of the main event at UFC 311, with Brazil's Renato Moicano stepping in to challenge Islam Makhachev on one day's notice.

An injured Arman Tsarukyan has been replaced in the main event of UFC 311, with Renato Moicano now challenging Islam Makhachev for the lightweight title – on one day’s notice.

With the tumultuous morning weigh-ins now in the books, the UFC 311 ceremonial weigh-in ceremony and fighter faceoffs are set to go down tonight in Los Angeles.

Dana White confirms Arman Tsarukyan's withdrawal due to a back injury; Islam Makhachev now faces Renato Moicano at UFC 311.

Dana White announced a major change to the UFC 311 pay-per-view card this Saturday in Los Angeles. Just hours before the official weigh-in on Friday, White and the matchmakers got word that Arman Tsarukyan has an ailing back and that he wouldn’t be able to compete this weekend against Islam Makhachev.

Can Moicano defeat all odds and become champ? Check the UFC odds series for our Makhachev-Moicano prediction and pick.

Islam Makhachev will now defend his title against Renato Moicano, following the withdrawal of original challenger Arman Tsarukyan due to a back injury.

UFC 311 has taken a massive hit. While preparing for his rematch and title shot against Islam Makhachev (26-1), Arman Tsarukyan (22-3)

Israel Adesanya envisions plenty of grappling exchanges in the UFC 311 headliner. Islam Makhachev (26-1 MMA, 15-1 UFC) defends his lightweight title in a rematch against Arman Tsarukyan (22-3 MMA, 9-2 UFC) in Saturday's main event (pay-per-view,

Alexander Volkanovski credits UFC lightweight champion Islam Makhachev for his calculated approach. Makhachev (26-1 MMA, 15-1 UFC) defends his lightweight title in a rematch vs. Arman Tsarukyan (22-3 MMA,

The UFC is in Los Angeles, CA this week for a stacked UFC 311 card and MMAKO is here to give you full money line odds and some of the best bets available.