The first big Ultimate Fighting Championship show of the year has just taken a monumental hit. During the UFC 311 early weigh-ins on Friday, Sherdog learned from sources close to the situation that headlining lightweight title challenger Arman Tsarukyan suffered a back injury.

Arman Tsarukyan is understandably devastated after having to withdraw from his first UFC championship fight at the last minute.

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.

Arman Tsarukyan breaks his silence after having to pull out of the UFC 311 main event against Islam Makhachev.

Arman Tsarukyan's year is not starting off as he planned.

Arman Tsarukyan has spoken out on being pulled from the UFC 311 main event title fight against Islam Makhachev due to a back injury.

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.

Arman Tsarukyan has spoken publicly following his decision to pull out of Saturday’s UFC 311 pay-per-view. Tsarukyan is currently in Los Angeles, where he had hoped to avenge his 2019 loss to Islam Makhachev to capture the lightweight crown and cement himself among the all-time top names at 155 pounds.

Renato Moicano has stepped up for an injured Arman Tsarukyan to take on Islam Makhachev at UFC 311 for the lightweight title.

Arman Tsarukyan is shedding some light on his shocking withdrawal from Saturday's UFC 311 headliner in Los Angeles.