BJJ Concepts!

A STEP BY STEP FORMULA FOR HACKING BRAZILIAN JIU-JITSUIn BJJ Core Concepts youll learn how to hack Brazilian Jiu-Jitsu and become an effective grappler much faster. The hacks youll be getting are actually the underlying concepts and principles of jiu-jitsu, the keys to the BJJ kingdom. Stephan has helped thousands of grapplers improve their skills through his clear and easy-to-use instructional apps, DVDs, and online videos.