5 pro wrestlers you didn't know competed in MMA

#2 Sean O'Haire

O’Haire’s wasted potential is a tragedy in itself

Sean O'Haire was potentially one of the biggest cases of wasted potential in WWE history. The guy had the looks, the character and the in-ring talent to succeed but unfortunately it just didn't come together as well as people were anticipating. What you may not know, however, is that O'Haire was undergoing an MMA career both during and after his tenure in professional wrestling.

With a record of four wins and two losses, O'Haire was actually pretty solid when it came to mixed martial arts. Unfortunately as we all know he passed away far too soon, but we can still look back on his body of work and appreciate it for what it is. Hell, he even had a headline fight with Butterbean back in late 2006.

Speaking of who, this last entrant knows a thing or two about good old Eric Esch.