UFC fighter Allan Nascimento dies after apparent heart attack

Brazilian UFC flyweight Allan Nascimento died on Monday, August 3, 2026, after suffering an apparent heart attack in his sleep at age 34. The UFC announced his passing on social media, stating he was found unresponsive and pronounced deceased at the scene despite efforts by medical responders. Nascimento held a professional MMA record of 22 wins and 7 losses, going 4-2 in six UFC appearances, with his final fight being a split decision loss to Mitch Raposo on June 20, 2026.