On this video, professors Mario "Busy" Correa and Ryan Walden (RFLX Training Center) show some basic attacks on the opponent's calf. Calf Slicers were always illegal until recently the International Brazilian Jiu-Jitsu Federation (IBJJF) made it legal to brown and black belts. With this new rule, our professors decided to study a little deeper than what they already knew about this submission and here are some of their options. Enjoy!!!