Luis Quinones, a 25-year-old rising boxer, saw his career cut short as he died following a knockout loss.

Five days after his last fight, Quinones reportedly died after suffering a blood clot in his brain due to head trauma he sustained. He spent his last days in a coma after undergoing surgery to remove the clot.

However, a news outlet revealed that the young boxer was declared brain dead on Thursday. He remained on a respirator until his death a few hours later.

Luis Quinones' death was confirmed by his brother, Leonardo Quiñones, through a Facebook post written in Spanish.

"You went ahead of us my soul brother, now you are on the lap of your heavenly father, whom you adored and served, I love you my brother Luis Quiñones, forever and ever in our hearts," Luis said, as translated by CBS Sports.

It also shared a translated statement from Colombian President Gustavo Petro, who sent his message of condolences to the bereaved family. He called Quinones a young man with a whole future ahead of him.

Unfortunately, the incident cut his dreams short.

According to Clinical Correlations, boxers are more at risk of sustaining traumatic brain injury (TBI) due to repeated blows to the head.

Luis Quinones' Fatal Last Fight

The junior welterweight champion had been known as an undefeated boxer at a very young age as he already had recorded 10-0 before his fight with Jose Munoz. The two boxers faced off on Sep. 24 at Coliseo Elias Chegwin.

The match, however, cut Quinones' win streak as he was knocked out a minute before the fight ended.

A video of the knockout has since gone viral on several platforms, including TikTok. The clip shows the boxer falling after receiving a punch from Munoz.

After being unable to get up on his own, medical personnel takes him out of the ring on a stretcher. He was then transported to the North General Clinic in Barranquilla.

Clutchpoints disclosed that he was diagnosed with "neurological deterioration as a result of head trauma due to traumatic contusions" and subdural hematoma.

Following his death, fans and colleagues penned heartfelt messages to honor him and pay tribute to the late boxer.