Derrick Lewis returned to the Octagon Saturday in Las Vegas to do what he's now done more often than anyone in history, knock out his opponent, this time stopping heavyweight Chris Daukaus with a series of brutal right hands in the first round of the UFC Fight Night 199 main event.

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Lewis was content to wait for most of the fight's first three minutes as the smaller Daukaus moved around the cage and remained active with quick shots. But the 265-pounder showed some of his underrated athleticism suddenly springing a jumping roundhouse kick on Daukaus. As his opponent backed away, Lewis exploded forward with a vicious flurry of punches that stunned Daukaus and had him clinching. When Daukaus tried to strike him from the clinch, Lewis unloaded a series smashing of right hands into his face that dropped the other man to the mat for the finish. With the KO, Lewis set the UFC all-time record for knockouts with 13.

The co-main event was a one-way affair as Belal Muhammad outwrestled and controlled Stephen Thompson, who, at 38, appears to have lost a step from his once elusive foot speed. Muhammad took a lopsided unanimous decision.