Under blackbelts Professor Kyle Cardinal and Professor Rodrigo Munduruca
Sandy Bowman is a Gracie Humatia Brazilian Jiu-jitsu Brown Belts and long time martial art trainer and competitor (including mixed martial arts)
Brazilian Jiu-Jitsu is a martial art based on ground fighting, focusing on the skill of controlling one's opponent through techniques that forces him or her to submit. It prides itself in being known as the "gentle art", allowing a smaller, weaker person to use leverage and submissions (chokes, locks) to defend against bigger opponents. With the origin in Judo (Newaza) and Japanese Jujutsu, it has since been adapted and modified by Renzo Gracie and his family to become the martial art it is today.