UFC flyweight Allan Nascimento dies at 34 from heart attack
Yahoo Sports • 1 min read • Latest: Aug 4, 2026, 4:47 PM
Last updated Aug 4, 2026
Allan Nascimento, a Brazilian UFC flyweight fighter known as 'Puro Osso,' passed away at the age of 34 from an apparent heart attack in his sleep. UFC announced his death on Monday, stating he was found unresponsive and pronounced dead by emergency medical personnel. Nascimento, who earned recognition for his skills and professionalism in MMA, had a record of 4-2 in the UFC and 22-7 overall, with 16 wins by submission. He began his MMA journey at the age of 15 and last fought in September 2022, losing to Mitch Raposo by split decision. Tributes from fellow fighters and friends have poured in, highlighting his kind nature and impact on those around him.
- •Allan Nascimento dies at 34 from an apparent heart attack.
- •UFC confirms he was found unresponsive on Monday morning.
- •He had a professional record of 22-7 and 4-2 in the UFC.
- •Nascimento began training at age 15 at Chute Boxe Diego Lima academy.
- •Tributes from fellow fighters highlight his kindness and legacy.
- 4:47 PMYahoo Sports — Allan Nascimento, Brazilian UFC fighter known as 'Puro Osso,' dies at 34
"Brazilian UFC flyweight Allan Nascimento, nicknamed "Puro Osso," has died at 34 after an apparent heart attack in his sleep, UFC said on Monday.
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