Invincibility Submission Defense Stephen Whittier

Invincibility Submission Defense Stephen Whittier

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.

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Invincibility Submission Defense Stephen Whittier

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