Matt Lindland is a Greco-Roman Olympic Silver Medalist and one of the top-ranked mixed martial arts competitors in the world.
Erich Krauss is a professional Muay Thai fighter. He has written for the New York Times and is the author of more than twenty books.
Glen Cordoza is a professional MMA fighter. He is the author of eight books on the sport of MMA, including the best-selling title, Mixed Martial Arts.