Kentucky Derby winner, Medina Spirit, died Monday after the three-year-old colt collapsed following a track workout, multiple sources reported.

“It is with great sadness that I am reporting Medina Spirit passed away today from a heart attack at Santa Anita following a workout,” Medina Spirit trainer and Hall of Fame member Bob Baffert said in a statement obtained by the Thoroughbred Daily News (TDN). “My entire barn is devastated by this news.”

“Medina Spirit was a great champion, a member of our family who was loved by all, and we are deeply mourning his loss. I will always cherish the proud and personal memories of Medina Spirit and his tremendous spirit,” Baffert added.