SportOther SportsUFCUFC fighter Allan Nascimento, who fought six times in the promotion's flyweight division, died in his sleep from an apparent heart attack09:48, 04 Aug 2026UFC fighter Allan Nascimento has died in his sleep aged just 34.‌The Brazilian flyweight, who fought six times for the UFC over a five-year period, was most recently in action in June when lost a decision to Mitch Raposi in Las Vegas. He had won four of his six fights with the promotion and held an MMA record of 22-7.‌A statement from the UFC read: This morning, our beloved fighter and exemplary flyweight, Allan Nascimento, was found unresponsive after suffering an apparent heart attack in his sleep. Despite the efforts of the responding medical team, he was pronounced deceased at the scene. Our thoughts and deepest condolences are with Allan's family, friends, teammates, and loved ones during this incredibly difficult time."‌Tribues to Nascimento poured in with former lightweight champion, and fellow Brazilian, Charles Oliveira saying: "Today I lost a brother that the fight game gave me. Thank you for always being by my side, for sharing the mats and the corner."I have nothing but gratitude for having you with me in training, in the corner, and just hanging out. I love you, man; you're a legend."The UFC itself added: : "A fixture on the doorstep of the Top 15, Nascimento was a constant presence alongside his team-mates whenever they made the walk, sharing an especially close bond with former lightweight champion and current BMF titleholder Charles Oliveira. Our condolences go out to Nascimento’s family and friends, the Chute Boxe Diego Lima team, and all those impacted by this sudden, heartbreaking loss."Article continues belowNascimento's gym also released a statement which read: "Today our team loses much more than an athlete; we lost a warrior, a friend, a dedicated competitor, and an extraordinary human being who earned the respect and admiration of all who had the privilege of knowing him."Allan inspired on and off the mat with his determination, humility, respect and fighting spirit. Your presence will be missed immeasurably. Rest in peace Allan, your name, your story and your legacy will live forever through our star."Choose Daily Mirror as a 'Preferred Source' on Google News for quick access to the news you value.‌UFCHeart attackHeart disease