The brain child of mixed martial arts star, Chael Sonnen, Submission Underground has quickly become a popular outlet for competitive grappling. And that trend continued this last December 2nd weekend with Submission Underground 6, which brought a number of exciting matches and submission action.
The main event alone was enough to draw a massive amount of attention, as former Strikeforce champion Jake Shields battled UFC talent Gilbert Burns. Burns and Shields are two men who are well-known for their abilities in the MMA arena. But they’ve both been successful on the grappling circuit as well, with ADCC bronze medals to both their names.