UFC Hall of Famer Stephan Bonnar, who rose to prominence on the first season of The Ultimate Fighter, has died, the organization announced Saturday. He was 45.
In a statement announcing the news, the UFC disclosed Bonnar died from “presumed heart complications while at work.” There are no further details regarding the specific cause of death at this time.
“Stephan Bonnar was one of the most important fighters to ever compete in the Octagon,” UFC president Dana White said. “His fight with Forrest Griffin changed the sport forever, and he will never be forgotten. The fans loved him, related to him and he always gave them his best. He will be missed.”