Junior welterweight prospect Luis Quinones, 25-years-old, passed away on Thursday night, five days after being hospitalized after suffering a knockout loss to Jose Munoz in Barranquilla, Colombia. The fight took place on September 24 at the Coliseo Elias Chegwin. 

The boxer's brother, Leonardo Quinones, announced the tragic news on social media.

“You went ahead of us my loving brother, now you are with your heavenly father, whom you adored and served, I love you my brother Luis Quinones, forever and ever in our hearts,” Leonardo wrote.

Quinones (10-0, 6 KOs) turned pro in April of 2018 and primarily fought in Colombia. The opponent, Munoz (9-0, 7 KOs), had only turned pro last year.

In the eighth round of the fight, Quinones seemed to be badly hurt and didn't have his feet under him. He was sent to down to canvas, which ended the fight. He was removed from the ring on a stretcher, with Munoz cutting short his celebration to check on Quinones.

The boxer was then transported to the North General Clinic in Barranquilla, where he underwent surgery after doctors discovered head injuries including a subdural hematoma.

Quinones spent several days in a coma, with local doctors declaring him brain-dead on Thursday. His respirator was removed at midnight.

Cuadrilatero Boxing, the promoter of the event, issued a statement on social media.

“Cuadrilatero Boxing is deeply saddened by the death of Luis Quinones, an exceptional and disciplined human being, who always showed the greatest commitment to this sport,” it read. “Luis was passionate about boxing, so much so that he left his hometown of Barrancabermeja to continue his career in Barranquilla and become a national athlete. His idol was Julio Cesar Chavez.”