Any fan of professional wrestling knows what it is like to have the men and women who compete in the ring dubbed "fake" or "phony," their toughness and legitimacy called into question by fans who, more times than not, have no idea what they are talking about. While professional is a predetermined work, a form of entertainment that captivates fans across the globe each and every week, there is no denying the toughness of those who dedicate their lives to the craft. Over the course of wrestling history, there have been many wrestlers who have proven their toughness to doubters, both in the ring and out of it. Those who did so between the ropes earned the respect of their peers and fans, their dedication to the sport never in doubt. Those outside the sanctity of the show had zero problem showing those who questioned their toughness first-hand just how wrong they were. Some of the toughest and most feared men in sports-entertainment history are the biggest stars of all-time, their longevity and ability to battle through injury to remain the top stars in their field. It is easy to be presented as a badass on Monday and Thursday nights. It is another thing entirely to prove your toughness in everyday life. These men did it consistently.