Invincibility: Submission Defense Course by Stephen Whittier (On Demand)

3 Volumes

Stephen Whittier is a 3rd degree BJJ black belt and owner of Nexus Martial Arts & Fitness in Massachusetts. He's also a professional performance coach with years of experience teaching seminars and training camps across the country and internationally, and training everyone from recreational students to BJJ competitors and "A-list" MMA fighters.