Hill KOs Walker in 1st round of UFC main event

Rising light heavyweight star Jamahal Hill scored an incredible finish in his first UFC main event.

Hill knocked out Johnny Walker at the 2:55 mark of the first round at UFC Fight Night on Saturday in Las Vegas.

"Sweet Dreams" lived up to his nickname yet again, putting Walker down with a brutal right hand to the temple. He landed one shot on the ground before referee Jason Herzog stepped in.

Hill, who was ranked No. 12 in the 205-pound division heading into Saturday's bout, will likely move into the top 10 after taking out the No. 10-ranked Walker. Hill said afterward he hopes to face a top-five opponent and even get a title shot in the future, but he seemed willing to take his career slow.

"That's definitely what I want," he said in his postfight interview. "I'm ready to come for that. But right now, we're going to see. I'mma take a look at the division and see what's up."

The 30-year-old is one of the most promising rising stars in his weight class and moved to 4-1 (1 NC) in the UFC.

Walker, 29, is now 1-4 in his past five appearances after starting his Octagon career with three straight victories.

Hill and Walker were originally set to compete in the co-main event. The light heavyweights were elevated to top billing after the bout between Rafael dos Anjos and Rafael Fiziev was postponed.