UFC Flyweight Allan Nascimento, 34, Dies After Heart Attack in Sleep

Brazilian mixed martial arts fighter Allan Nascimento has died at the age of 34, the UFC confirmed on Monday. He was found unresponsive early Monday morning after suffering an apparent heart attack in his sleep.

"Despite the efforts of the responding medical team, he was pronounced deceased at the scene," the UFC said in a statement. "Our thoughts and deepest condolences are with Allan's family, friends, team-mates and loved ones during this incredibly difficult time."

Career and Record

Nascimento joined the UFC in 2021 and competed in the flyweight division. His most recent bout was a split-decision loss to Mitch Raposo in June. Over his professional career, he accumulated an overall MMA record of 22 wins and 7 losses, including a 4-2 record inside the UFC.

The sudden death of a 34-year-old professional athlete has prompted an outpouring of tributes from the fighting community. The cause beyond the apparent cardiac event is yet to be formally established. No further details about the circumstances surrounding his death have been released by the organisation.