18. Pat Barry vs. Cheick Kongo

Barry and Kongo needed only two minutes and 39 seconds to deliver one of the most memorable fights of the decade at UFC On Versus 4 in 2011. The fireworks began when Barry landed a clubbing right hook behind the ear that put Kongo down. The strike had him swaying woozily on his knees as he landed follow-up blows, leading Joe Rogan to shout, “It’s over!”

However, Kongo unsteadily rose to his feet. He faceplanted into the cage and was dropped again with a right hook to the temple. “He’s out!” Rogan declared. But he was wrong again as Kongo got up, wobbled backward and then stole himself for a last-ditch attack. He wobbled Barry with a right hook and then knocked him out cold with an uppercut for a legendary comeback victory.