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.

Set to take place at the Intuit Dome in Los Angeles, CA, UFC 311 was supposed to feature a rematch between UFC Lightweight Champion Islam Makhachev and Arman Tsarukyan in the night’s main event after the undefeated Umar Nurmagomedov challenges UFC Bantamweight Champion Merab Dvalishvili in the co-main event.

Arman Tsarukyan's nearly six-year journey to the UFC lightweight title will take a little longer. Tsarukyan suffered an injury two nights before challenging lightweight champion Islam Makhachev at UFC 311.

Fans react with skepticism to Arman Tsarukyan’s withdrawal from UFC 311 against Islam Makhachev after his statement.

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.

As a result of Tsarukyan's dropout, lightweight contender Renato Moicano is stepping into the main to challenge Makhachev for the 155-pound title on short notice. Moicano was previously scheduled to face fellow veteran contender Beneil Dariush on the pay-per-view card.

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.

Challenger Arman Tsarukyan is out of the lightweight title fight against champion Islam Makhachev, set for UFC 311 on Saturday, due to back pain. Dana White, the CEO of UFC, confirmed Friday that Renato Moicano will step in for Tsarukyan in the main event in Inglewood, Calif. The fight will be five rounds.

The Dagestanis strive to become the first teammates to win a belt in the co-main event and retain a belt in the main event Saturday night at Intuit Dome

Beneil Dariush has broken his silence following losing his UFC 311 fight against Renato Moicano after the Brazilian was upgraded to fight Islam Makhachev.

Khabib Nurmagomedov has given his thoughts on Arman Tsarukyan being replaced by Renato Moicano to fight Islam Makhachev at UFC 311