Stephan Bonnar, a UFC Hall of Fame honoree who helped put mixed martial arts on the map, died Thursday. He was 45.
Bonnar died from “presumed heart complications,” the UFC said Saturday in a statement announcing his death.
“Stephan Bonnar was one of the most important fighters to ever compete in the Octagon,” said UFC President Dana White. “The fans loved him, related to him, and he always gave them his best. He will be missed.”