Famous American ex-UFC and Bellator fighter Stefan Bonnar passed away at the age of 46.

Reported by Sports Illustrated.

It is noted that Bonnard died from "

" His fight with Forrest Griffin changed the sport forever and he will never be forgotten.. The fans loved him, were close to him, and he always gave them the best. He will be missed,"

Bonnard is a member of the UFC Hall of Fame and will forever be remembered by MMA fans..

Bonnar's most famous fight is his fight with Forrest Griffin in 2005 on The Ultimate Fighte.. It is called one of the most epic fights that changed the sport forever..

He has 15 wins in 24 career fights, as well as three defeats by knockout, seven submissions and three decisions of the judges..