LOS ANGELES – UFC 311 took an unexpected major turn Friday morning, with Arman Tsarukyan withdrawing from his lightweight title fight against Islam Makhachev. A new UFC 311 main event is now set as Renato Moicano will step in to challenge Makhachev (26-1 MMA, 15-1 UFC) for the belt.

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

Arman Tsarukyan thinks he can drag Islam Makhachev into deep waters at UFC 311. Tsarukyan (22-3 MMA, 9-2 UFC) challenges lightweight champion Makhachev (26-1 MMA, 15-1 UFC) in Saturday's main event (pay-per-view,