articleUFC flyweight Allan Nascimento has died at age 34, the UFC announced Monday. Nascimento was found unresponsive after suffering an apparent heart attack in his sleep, according to a statement released by the organization. Despite efforts by emergency responders, he was pronounced dead at the scene, the UFC said. The Brazilian compiled a 22-7 professional record and went 4-2 inside the Octagon, with 15 of his 22 career victories coming by submission. Nascimento spent more than a decade pursuing his UFC dream before emerging as one of the promotion's rising flyweight contenders.