Khalil Rountree brought a challenge, but Alex Pereira managed to bring out another legendary performance — comeback style this time — as he finished the challenger to retain the UFC light heavyweight championship in the main event of UFC 307.

Rountree got off to a strong start with his activity, landing singular shots and doing a good job of getting away from the fence. Pereira was doing work with leg kicks, but he found himself in some trouble in the second round. "The War Horse" rocked "Poatan" with a strong right hook and followed that up by landing a big head kick.

Pereira's output increased greatly in the fourth round, as he poured it on and continued to damage his challenger — to the point his nose may have been broken.

"The War Horse" tried to survive, but with blood pouring down his rocked body, Pereira landed a combination with a pair of body shots that dropped him, bringing the fight to a stop.

Alex Pereira Puts On Battering To Finish Khalil Rountree In Fourth Round At UFC 307

Moving up to light heavyweight last year after his middleweight title run came to an end, Pereira captured the then-vacant championship with a win over Jiří Procházka at UFC 295. He then defended the title this year against Jamahal Hill and Procházka at UFC 300 and 303, respectively.

Rountree, meanwhile, entered his first title challenge on a five-fight win streak. He had most recently fought in December, scoring a finish of Anthony Smith.

• Read More: UFC 307 Results & Highlights: Alex Pereira TKOs Khalil Rountree