Boxer Patrick Day died Wednesday from brain injuries sustained during a fight on Saturday night. He was 27.
Day's death was announced by promoter Lou DiBella. Day was knocked out Saturday by Charles Conwell in the 10th round of a USBA super welterweight title bout in Chicago.
"On behalf of Patrick's family, team, and those closest to him, we are grateful for the prayers, expressions of support and outpouring of love for Pat that have been so obvious since his injury," DiBella said in a statement he attached to his Twitter account. "He was a son, brother, and good friend to many. Pat's kindness, positivity, and generosity of spirit made a lasting impression with everyone he met."
When Day was knocked out, his head slammed into the canvas and the bout was stopped by referee Celestino Ruiz without a count.
Day was removed from the ring via stretcher and taken away by ambulance from Wintrust Arena.
Day reportedly suffered a seizure and fell into a coma. He never regained consciousness and was taken off life support on Wednesday before being pronounced dead at Northwestern Memorial Hospital in Chicago.
Day went 17-4-1 with six knockouts during his professional career that began in 2013. The native New Yorker was a 2012 Olympic alternate.
Conwell, 21, was deeply affected by Day's dire situation and posted an emotional letter on his social-media accounts on Monday.
"I never meant for this to happen to you," Conwell wrote. "All I ever wanted to do was win. If I could take it all back I would. No one deserves for this to happen to them. I replay the fight over and over in my head thinking what if this never happened and why did it happen to you. I can't stop thinking about it myself.
"I prayed for you so many times and shedded so many tears because I couldn't even imagine how my family and friends would feel. I see you everywhere I go and all I hear is wonderful things about you."
DiBella hopes Day's death will prompt officials to look for ways to make boxing safer.
"It becomes very difficult to explain away or justify the dangers of boxing at a time like this," DiBella said. "This is not a time where edicts or pronouncements are appropriate, or the answers are readily available. It is, however, a time for a call to action. While we don't have the answers, we certainly know many of the questions, have the means to answer them, and have the opportunity to respond responsibly and accordingly and make boxing safer for all who participate.
"This is a way we can honor the legacy of Pat Day. Many people live much longer than Patrick's 27 years, wondering if they made a difference or positively affected their world. This was not the case for Patrick Day when he left us. Rest in peace and power, Pat, with the angels."
--Field Level Media