"Jackson's ability to help his fighters reach their potential has made him one of the most respected trainers in the sport."—Ultimate MMA
About the Author
Greg Jackson is the world's number one MMA trainer. He has more than fifteen MMA champions in his stable of fighters, including Georges St. Pierre and Rashad Evans, and his athletes have won hundreds of grappling championships. Jackson lives in Albuquerque, NM.
Kelly Crigger is a Lieutenant Colonel in the US Army and is a columnist for Fight! magazine. He is the author of Title Shot: Into the Shark Tank of Mixed Martial Arts, which detailed his year-long journey through the world of professional fighting.