Fighter Allan 'Puro Osso' dies at age 34, says UFC

"Our beloved flyweight fighter, Allan Nascimento, was found unresponsive after suffering an apparent heart attack while sleeping. Despite the efforts of the medical team who provided care, he was pronounced dead at the scene. Our thoughts and deepest condolences are with Allan's family, friends, teammates and loved ones during this incredibly difficult time," lamented Ultimate, who did not disclose the location of death in the statement.

Born in São Paulo, the athlete began his Muay Thai career at the age of 15. Two years later, he began to take his first steps in MMA secretly, hiding his activity from his parents until he reached adulthood and revealed his dream of becoming a professional athlete. Allan was recognized for his high level of jiu-jitsu and his fierce fighting style, always giving his all in combat.

The fighter received the nickname “Puro Osso” from his teammates at the gym because of his weight. In his career as a professional fighter in competitions, which spanned 29 fights, he won 22 victories and suffered 7 defeats.