https://www.teachingbjj.com/wp-content/uploads/2021/03/Screenshot-2021-03-07-at-11.56.48.jpg516893Webmasterhttp://www.teachingbjj.com/wp-content/uploads/2021/03/logo-1-300x94.pngWebmaster2021-03-07 15:57:532021-04-27 15:27:22Principles to help lesson planning – Strong Zones (Gerry Young 4m)