By Reuters and The Associated PressPublished On 12 Apr 202612 Apr 2026The dawn of a new era at light heavyweight commenced in Miami in the main event of UFC 327, which saw Carlos Ulberg win the vacant Ultimate Fighting Championship light heavyweight title over former champion Jiri Prochazka.With United States President Donald Trump sitting cageside on Saturday, Ulberg delivered a perfect left hook to Prochazka’s chin and won the undisputed belt with a knockout at the 3:45 mark of the first round.Recommended Stories list of 4 itemsend of listUlberg (14-1 MMA, 10-1 UFC) finished Prochazka (32-6-1 MMA, 6-3 UFC) after nearly losing the fight due to a knee injury, catching Prochazka coming in with a left hook, followed by strikes, to win the title.“I blew out my knee, but I never counted myself out,” Ulberg said. “I knew all I needed was that one shot, and I ended up getting it. So I knew that Jiri was hesitant to come forward. And as soon as I landed my left hand, he’s going.“It’s about getting those moments.” Ulberg punches Prochazka on the mat [Carmen Mandato/Getty Images via AFP]Ulberg has won 10 in a row, whereas Prochazka has fallen to 1-3 in UFC title fights since June 2022. Two of those losses were to Alex Pereira (13-3).Ulberg (15-1-0) appeared to tweak something early in the first round when he planted his foot and his right knee buckled awkwardly. Prochazka (32-6-1) immediately went to work on Ulberg’s left leg, repeatedly landing kicks with hopes of taking both legs away, rather than attacking aggressively to end it.“I felt sorry [for] him, and this is one of the biggest lessons in my life,” Prochazka said. “That fight was won, I had it, it was in my hands. I saw his injury, and … I will be back. Life is about that, learn and be better.” Advertisement The matchup was made after former champion Alex Pereira vacated the belt to move up an …