Allan Nascimento, nicknamed "Puro Osso" (Pure Bone), passed away in 2026. Photo: Reproduction/UFC
The UFC did not forget Allan Nascimento and honored his memory. This Saturday (8), the world's largest MMA organization paid a beautiful tribute to the Brazilian during the broadcast of UFC Vegas 120. Puro Osso apparently suffered a heart attack while sleeping and, unfortunately, passed away on the morning of last Monday (3), in São Paulo, at the age of 34.
The tribute to the now eternal member of the 'Chute Boxe Diego Lima' team can be seen on the official UFC YouTube channel and social media, narrated by journalist Evelyn Rodrigues. It tells the story of "Puro Osso" (Diego Lima's nickname), from the beginning of his career to becoming a member of the world's largest MMA organization. The athlete's passing was so deeply felt and shocking that many fans and sports professionals continue to pay tribute.
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“An unexpected, sudden farewell took the MMA world by surprise. At 34 years old, Alan Nascimento died last Monday while sleeping. In 14 years of his career, the flyweight built a trajectory marked by perseverance, discipline and love for the sport.”
“A story that began at age 14 in his first Muay Thai class. It was there that his partnership with Diego Lima was also born. The coach and friend accompanied Alan throughout his training as a fighter, from his very first strikes. Alan's parents, Airton and Kátia, wanted a different future for their son. Therefore, for a long time, he secretly left home to fight. Until he decided to gather his family and ask them to believe in the same dream he had. And they did.”
“In training, the skinny kid earned the nickname Pure Bone. At Chute Boxe Diego Lima, in São Paulo, Alan became one of the most respected members of the team. He was always by his teammates' side, in training, in the corner, in life. While I watched his friends achieve their dream of reaching the UFC, I celebrated each achievement as if it were my own.”
“Then, in 2018, came the first big opportunity, the Dana White Contender Series Brazil. Even though he lost in a very close fight, Alan heard from the UFC president that the chance would still come, and it did three years later. During that time, he almost lost hope. Still, he never gave up.”
“Twenty days before his UFC debut, the hardest blow of his life came: the death of his father. His father, Airton, passed away without seeing his son achieve the greatest dream of his career. His physical absence never erased his presence. Fight after fight, Alan found a way to keep his father by his side. He had 29 professional fights, six in the UFC, the last one in June of this year.”
“But Alan Nascimento’s greatest legacy lies in the way he chose to live, in his love for his family, his loyalty to his friends, his gratitude to Chute Boxe Diego Lima, and his courage in not giving up on his dream of reaching the UFC. The longing will remain, but regardless of anyone’s faith or beliefs, there is also the hope that, finally, Alan has found the embrace that life took from him too soon, that of his Airton.”
See the tribute made by the UFC to Allan Puro Osso.
Allan Puro Osso's history in MMA.
Allan Nascimento, known as Puro Osso in MMA, was one of the standout fighters at the Chute Boxe Diego Lima academy and a friend of Charles do Bronx . The Brazilian began his career in the sport in 2011 and debuted in the UFC in 2021. The athlete competed in the flyweight division (up to 56,7 kg).
In this fighting style, Puro Osso built a professional record consisting of 22 wins, 17 by stoppage (15 by submission and two by knockout), and seven losses. His main victories were over Cody Durden , Jafel Filho , and Jake Hadley.
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