#Revgear Champion Jamal Sawyer #Revgear Champion Jamal Sawyer ‘Bellum BJJ’ Seminar Nov.3 Jamal Sawyer Wins! “Revgear Tournament of Champions 2019” Division Belt. Posted by Caleb T on October 12, 2019 in Events Share this article: 0 About Caleb T Related Articles Temporarily Closed 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 Online Store Coming Soon! ‘We got you’ Gorilla