Johnny Walker stepped up to heavyweight for the first time on Saturday night.
The long-time light heavyweight contender capped off the early prelims at UFC 332 in Salt Lake City, Utah.
Mick Parkin returned from an 18-month layoff to welcome the Brazilian fan favorite to his new division.
- LATEST NEWS: 25-fight UFC veteran retires after being viciously knocked out in front of home crowd at UFC 332
Give us your early predictions for the UFC 334 main event
Watch Johnny Walker KO Mick Parkin
Johnny Walker kicked off his heavyweight run with one of the best knockouts of 2026.
The 34-year-old hammered away with leg kicks early when he fought Tom Aspinall’s sparring partner.
Eventually, Mick Parkin landed a couple of good punches before the pair battled for position in the clinch.
Walker won that battle, which allowed him to attempt a scary-looking jumping knee.
That missed, but his next knee connected on Parkin’s chin and sent him crashing to the canvas.
The Englishman was out cold before he hit the floor, where he remained unconscious as Walker celebrated by doing ‘The Worm’.
Should Johnny Walker have moved to heavyweight sooner?
Joe Rogan hopped into the Octagon to interview Johnny Walker after his UFC 332 win.
The UFC commentator asked Walker if he should’ve always been competing in the heavyweight division.
“No, because I like to play hard. I don’t like easy things,” the 6ft 6in KO artist said.
“I nerfed myself to get to light heavyweight.
“I lost muscle mass and dehydrated my brain.
“Now, I am great, buff, and I can do s—.
“I don’t think there is no heavywieght that can fight like me.”
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