Stephen ‘Wonderboy’ Thompson rolled back the years to earn the ultimate farewell at UFC 334 on Saturday.The 43-year-old, who made his UFC debut in 2012, knocked out Charles Radtke with an insane spinning wheel kick in the third round of their bout on the New York card at Madison Square Garden.Thompson contested the final fight of his MMA career at UFC 334, retiring with an 18-9-1 recordGettyRadtke had success with takedowns in the opening round before Thompson found his rhythm in the second, leaving it to the third and final round.After leaving Radtke seriously hurt at the end of round two, ‘Wonderboy’ came out firing in the final five minutes, and it wasn’t long before he found the finish.The American had flaunted his unique striking skillset for most of the fight, but nothing was quite like the kick that knocked out Radtke.After landing a sharp kick to the body, Thompson took a step back to find space and unloaded a thunderous spinning wheel kick that sent his opponent crashing to the canvas.View Tweet: https://x.com/hashtag/UFC334?src=hash&ref_src=twsrc%5EtfwThe kick was so powerful he didn’t even need to make a clean connection as Radtke had both hands in the air. “I’ve been with the UFC for almost 15 years, and tonight I couldn’t ask for a better way than to go out with a spinning hook kick to the dome,” Thompson, a karate and kickboxing specialist, told Joe Rogan after his stunning win.“I don’t care if your hands are up. If you hit someone with a spinning hook kick to the dome, they’re going down.”UFC commentator Rogan, Thompson, and the American’s entire team were overcome with emotion after the broadcast played a video package honouring his career.“I told myself I wasn’t going to cry,” Thompson added.“The UFC, everybody that helped get me here, my dad, my brother, my mum, everybody back home… but most of all, we wouldn’t have this if it wasn’t for my fans.“I know I’ve said this before, but if I never meet you, dance with you, train with you, laugh with you or cry with you, I love you.”Having said before UFC 334 this would be his last, Thompson then laid down his gloves for one final time under the most miraculous circumstances.The two-time UFC welterweight title challenger from South Carolina retires with an 18-9-1 professional MMA career.His career dates back to 1999, when he began kickboxing as a teenager.MMA icon Georges St-Pierre once described Thompson as the greatest striker he’s ever sparred with in his entire career.Thompson can now go back to his Upstate Karate gym in South Carolina as a future UFC Hall of Famer, knowing his striking will be talked about for many generations to come.UFC ScheduleThere are still several blockbuster shows and exciting contests for fight fans to look forward to in 2026, and you can find the full list of all confirmed events and official bouts as part of talkSPORT.com’s UFC schedule.The UFC, on average, puts on 13 to 14 premium events in a calendar year, with up to 30 smaller ‘Fight Night’ cards allowing prospects and less experienced fighters to showcase their talents.On January 1, 2026, Dana White’s promotion signed a seven-year broadcast deal with CBS and Paramount+ for exclusive rights in the US, meaning the UFC has put on shows like never before this year.With the historic first event in the new Paramount era, UFC 324, delivering huge success, and a one-of-a-kind fight card at the White House in June opening up the UFC to a new audience, the promotion remains a premium global sports brand, and fans are eager to keep track of results and upcoming fights.