Rope Climb: Karen Rope Climb: Karen Gorilla Combat Exhibition III Team Gorilla Spartan 2016 Posted by Gorilla Combat on July 18, 2016 in Events Share this article: 0 About Gorilla Combat Related Articles #Revgear Champion Jamal Sawyer Gorilla Exhibition Bouts II PROFESSOR DEREK BARLOW I received my Black Belt in August 2017 after 9 years of training under Professor Robert Drysdale /Professor Marcelo Nunes. Professor Derek Barlow is Owner and Operator of Bellum Brazilian Jiu-Jitsu 905 Selby Avenue St. Paul, Mn. 55104