UFC Hall of Famer Khabib Nurmagomedov knows a thing or two about last-minute opponent changes. Nurmagomedov, one of the best former lightweight champions in the sport, has become an incredible coach.

The lightweight challenger has to withdraw with a back injury, opening the door for the brash Brazilian and forcing Beneil Dariush off the card.

As Jailton Almeida looks to reestablish himself as a future title contender at heavyweight, Serghei Spivac is a good matchup for UFC 311's new pay-per-view opener, but also a dangerous one like Barcelos is for Talbott.

UFC lightweight champion Islam Makhachev didn't hesitate when asked to accept a short notice fight against Renato Moicano.

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.

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

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.

Let's try this again. In the main event of UFC 311, we are going to see a lightweight title fight that came together earlier today. Lightweight champion and

Islam Makhachev reacts to Arman Tsarukyan’s withdrawal from UFC 311, and his new title defense vs. Renato Moicano.

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.

Renato Moicano is ready for the opportunity of a lifetime — and Islam Makhachev is more than willing to give it to him.