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.

Islam Makhachev made weight for his latest title defense, but his opponent was nowhere to be seen. The reigning lightweight champion—and No. 1 Pound-for-Pound fighter in the world—hit the mark for the UFC 311 main event,

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

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.

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.

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

Lopes is the number three-ranked featherweight in the world, but has only made one appearance up the weights in short notice catchweight bout against Dan Ige. Meanwhile Poirier was the last man to challenge Makhachev at UFC 301 last summer, losing by submission in the fifth round.

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