Arm Bars: Enter The System by John DanaherJohn Danaher is one of the most notorious and demanded grappling coaches in the planet, and its because he can take a simple idea like the jujigatame armbar and turn it into a weapon for his opponents and a death sentence for their opponents. John has unlocked new secrets in grappling that he has honed into a world championship caliber system Now, it is time to enter the system again across 8 volumes to learn the worlds most effective armbars The
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