Brazilian UFC flyweight Allan Nascimento died at the age of 34 after suffering an apparent heart attack in his sleep on Monday morning, August 3rd, 2026. The Ultimate Fighting Championship (UFC) announced that Nascimento was found unresponsive and later confirmed his passing.

The mixed martial arts (MMA) organization posted the news on their website late Monday. In their statement, the UFC expressed condolences to Nascimento's family, friends, teammates, and loved ones during this difficult time.

Chute Boxe, a training camp associated with Nascimento, also released a statement mourning the loss, describing him as "a warrior, friend, dedicated competitor and extraordinary human being."

Nascimento's death has been reported globally, with the UFC and MMA community sharing their grief over the sudden loss of the Brazilian fighter.

Sources