Submission Underground's debut event was everything a grappling fan could ask for. Former UFC star Chael Sonnen's grappling competition was full of twists and turns -- there were numerous slick finishes, upsets and wild escapes. The event took place live from the Roseland Ballroom in Portland, OR on Sunday, July 17 and was streamed live on FloCombat.com.
In the main event of the evening, WSOF light heavyweight contender Vinny Magalhaes tapped out ex-UFC fighter Ronny Markes in regulation. Magalhaes' submission was quite the finish -- Markes appeared to have a toe hold relatively tight, but all of a sudden tapped out to his opponent's heel hook attempt.