What happened: Johnny Walker defeated Waldo Cortes-Acosta via third-round knockout at 2:27 in the main event of UFC Fight Night at the Meta APEX. Walker stunned Cortes-Acosta with a backfist before finishing the bout on the canvas. 'Surprise motherf---er,' Walker said afterward, explaining that he resorted to 'street fight s---' to close out the bout.

Why it matters: The victory moves Walker to 24-10-0 in professional MMA and validates his heavyweight transition after conceding 23 pounds on the scale. The headline stoppage provides immediate traction in the division against larger opponents.

What to watch: Walker will await his next heavyweight assignment as the promotion maps out its upcoming fight schedule.