Mixed Martial Arts isn't just a young man's sport. For these 10 fighters, they fought and continue to fight well into their 40s.
It's been the driving force behind former UFC light-heavyweight and heavyweight champion Randy Couture, who has been the underdog in many of his bouts just because "he is too old."
It's been the case for almost his entire career, but when it's all said and done and Couture has his hand raised, we always can hear him saying "not bad for an old man."
The main card of UFC 129 will feature two veteran fighters who are over 40. "The Natural" will be taking on Lyoto "The Dragon" Machida, while Vladimir "The Janitor" Matyushenko will be fighting Jason Brilz; both in the light-heavyweight division.