Islam Makhachev is not only the best fighter in the world, he's also the most accomplished lightweight champion in UFC history.

Check out the best photos from Islam Makhachev's first-round submission win over Renato Moicano at UFC 311 at Intuit Dome in Inglewood, Calif. (Fight and venue photos by Gary A. Vasquez, USA Today Spo

For one fleeting moment in the first round of Saturday night's UFC 311 main event, it looked like we might witness one of the greatest upsets in MMA

Beneil Dariush may have found a new opponent after his UFC 311 distaster. The long-time lightweight contender was supposed to fight Renato Moicano at the Intuit Dome in California on Saturday night – but he was taken off the card after an injury-induced reshuffle.

Beneil Dariush puts out a statement after his opponent Renato Moicano stepped in to fight UFC Champ Islam Makhachev. Beneil Dariush won't be among the fighters making the walk tomorrow for UFC 311.

Islam Makhachev made quick work of Renato Moicano on Saturday night, locking in a D'arce choke to submit him in Round 1 and retain his title at UFC 311.

Makhachev was set to defend his title in a rematch against Arman Tsarukyan, while Moicano was to face Beneil Dariush. However, everything changed at the official morning weigh-ins when Tsarukyan withdrew from his title opportunity due to a back injury.

Gilbert Burns places a bold $50,000 bet with Islam Makhachev’s manager, confidently backing Renato Moicano to secure the win.

The lightweight champ finishes the challenger, moved to the main event on a day’s notice, with a D’Arce choke to cement his place as one of the sport’s best

Grant Dawson made his case to be Beneil Dariush's next opponent at UFC 311. The Top 20 UFC lightweight is now riding a three-fight win streak after dominating a seasoned UFC veteran 10 years his elder in Diego Ferreira. Ferreira was coming off some momentum himself with back-to-back wins, but Dawson derailed it with a dominant showing on Saturday.

Islam Makhachev extended his winning streak to 15 matches with an effortless D'arce submission in the first round (4:05) against Renato Moicano on Saturday night in Inglewood, Calif., to cap