Yoel Romero received his biggest victory in the UFC to date, and it may go down as the best knockout of 2018.

Romero (13-2) knocked out Luke Rockhold with a monstrous left hand at the 1:48 mark of the third round. The middleweight fight headlined UFC 221 in Perth, Australia.

Romero was able to finish Rockhold despite suffering an apparent injury to his leg early in the fight. Afterward, he was visibly limping and said he believes he suffered a broken leg in the first round.

Originally, the event was supposed to feature undisputed middleweight champion, Robert Whittaker, defending his title against Rockhold. Whittaker, however, was forced off the card because of an injury, and the UFC replaced him with Romero. The new fight between Rockhold and Romero was supposed to be for the interim middleweight title. Unfortunately, Romero didn’t make weight so the fight became a number one contender showcase for a future title shot.

Following the fight, UFC President Dana White went on to confirm that Romero would get his chance in the Octagon against Whittaker again in a rematch of the two men’s fight of last July in which Romero suffered a loss by unanimous decision.