Sports Book Review: Mastering the Rubber Guard: Jiu Jitsu for Mixed Martial Arts Competition by Eddie Bravo, Erich Krauss, Glen Cordoza

http://www.SportsBookLand.com <br /><br />This is an audio summary of Mastering the Rubber Guard: Jiu Jitsu for Mixed Martial Arts Competition by Eddie Bravo, Erich Krauss, Glen Cordoza.