The ‘Gracie Challenge’ is going around the Humaita Black Belts and Gracie Sydney Brazilian Jiu Jitsu (BJJ) is IN. This time it’s not the Gracie fight challenge of old but a challenge to show a simple and effective technique (two fundamental and constant principals of Gracie Jiu Jits). Here are both Prof. Bruno Panno and Prof. Marcos Nevel‘s techniques! Enjoy.