Nascimento: UFC fighter dead at 34 after apparent heart attack

UFC fighter Allan Nascimento has died at the age of 34 following an apparent heart attack in his sleep. The Brazilian athlete, known for his career in mixed martial arts, was found unresponsive on Monday morning.
Why it matters
The sudden death of a professional athlete at a young age highlights ongoing concerns regarding health and wellness in high-impact sports.
Brazilian fighter Allan Nascimento was found dead in his sleep after a suspected heart attack, the UFC has reported.
x whatsapp-stroke copylink google Add Al Jazeera on Google info Allan Nascimento had an MMA record off 22 wins and seven defeats [Amy Kaplan/Icon Sportswire via Getty Images] By Kevin Hand Published On 4 Aug 2026 4 Aug 2026 Ultimate Fighting Championship (UFC) fighter Allan Nascimento has died at the age of 34 after suffering an apparent heart attack in his sleep.
The mixed martial art (MMA) body posted the news about the Brazilian’s passing late Monday on their website.
“This morning, Monday, August 3rd, our beloved fighter and exemplary flyweight, Allan Nascimento, was found unresponsive after suffering an apparent heart attack in his sleep,” the UFC statement read.
“Despite the efforts of the responding medical team, he was pronounced deceased at the scene.
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