Forrest Griffin was born July 1, 1979 in Columbus, Ohio. He relocated to Athens, Georgia and received a degree in Political Science at the University of Georgia. Forrest worked in local law enforcement and on his days off he trained to be a mixed martial artist at the HardCore Gym where he developed his trademark "Sprawl and Brawl" style of fighting. A combination of martial arts fused with a bare knuckle barroom technique. Outside of the octagon, Griffin is an ardent supporter of the USO and the Wounded Warrior Project. Griffin's first book Got Fight?: The 50 Zen Principles of Hand-to-Face Combat (William Morrow, June 2009), was released to good reviews. His second book is Be Ready When the Sh*t Goes Down: A Survival Guide to the Apocalypse (William Morrow, August 2010).
Erich Krauss is a professional Muay Thai fighter and the author of more than twenty-five books, including Anderson Silva's The Mixed Martial Arts Instruction Manual: Striking. He has written for the New York Times, and is the founder and publisher of Victory Belt Publishing. He lives in Las Vegas.