John Danaher (born April 2, 1967 in Washington, D.C., United States) is a Brazilian jiu-jitsu and mixed martial arts instructor and coach. He is widely regarded as one of the best instructors and coaches in these sports.
John Danaher (born April 2, 1967 in Washington, D.C., United States) is a Brazilian jiu-jitsu and mixed martial arts instructor and coach. He is widely regarded as one of the best instructors and coaches in these sports. (en)