Circle of Pain

Following a fighting accident, Dalton Hunt retired from the world of mixed martial arts at the top of his game. Unable to outrun his guilt, he lost his family, his title, and his way. But when a crooked promoter lures him back into a fight against the current undefeated champ, Dalton must enlist the aid of an enigmatic trainer to turn him back into a warrior so he can stand tall and do battle once again.
Daniel Zirilli

Kimbo Slice
Frank Mir
Miguel Torres
Roger Huerta
Heath Herring
Bai Ling
Dean Cain
Tony Schiena