An introduction to the three most critical concepts of BJJ: Base, Posture and Structure, by Rob Biernacki. From the ‘Core Concepts of BJJ’ instructional available at http://www.grapplearts.com/bjjconcepts
Direct links to the BJJ Core Concepts app below:
For iPhones and iPads in the iTunes Store:
https://itunes.apple.com/ca/app/bjj-concepts/id1106105151?mt=8
For Android phones and tablets in the Google Play Store:
https://play.google.com/store/apps/details?id=com.grapplearts.bjjformula1
For Kindle devices in the Amazon App Store:
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