What happened: Johnny Walker defeated Waldo Cortes-Acosta by knockout at 2:27 of the third round in the main event of UFC Vegas 124 at the Meta APEX. Walker landed a spinning backfist to set up the decisive sequence before finishing the bout on the canvas. The victory was one of four stoppage finishes across the 10-fight card.

Why it matters: The win advances Walker to 2-0 since transitioning to the heavyweight division, establishing his footing in a new weight class. Walker entered the bout at 239 pounds, overcoming a 23-pound weight disparity against Cortes-Acosta. The result lifts Walker's professional record to 24-10 while halting Cortes-Acosta's divisional momentum.

What to watch: Walker positions himself for a ranked heavyweight matchup following consecutive victories in his new division. The promotion next turns its focus toward UFC 336 on January 30.