Submission Underground Promo: Who is the greatest grappler on the planet?

Chael Sonnen is now the promotor of ‘Submission Underground’, a submission grappling event based on the superfights model.

The first event is set to take place on July 17 at the Roseland Ballroom in Portland, Oregon and will air exclusively on FloCombat.com.

In a promo video released on FloSports, Sonnen states that Submission Underground is designed to answer one question: Who is the greatest grappler on the planet?

Check out the promo video below:

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