UFC flyweight Allan Nascimento passes away at age 34 from suspected heart attack

The UFC confirmed that Brazilian flyweight Allan Nascimento died on the morning of August 3 following an apparent heart attack that occurred during sleep. Emergency responders arrived but were unable to revive him, and he was declared deceased at the scene. The promotion mourned the loss, offering sympathies to his relatives, colleagues, and supporters.

Nascimento compiled a career record of 22 wins and 7 losses, including a 4-2 tally inside the UFC. After debuting in 2021, he secured four straight wins before his most recent defeat, a split-decision loss to Mitch Raposo on June 20. His early career featured an unbeaten run of seven fights before his first setback, followed by a strong run of seven wins in eight bouts.