Due to research, the knee joint is the second joint in Brazilian Jiu-Jitsu to be injured, right after elbow joint. The reason may lie in a fact that heel hooks are forbidden in IBJJF and North American Brazilian Jiu-Jitsu Federation events. Heel Hook is probably the most dangerous submission and that’s exactly the reason why it’s … Continue reading (Warning) Loud Snap of Tibia and Fibula as a Result of a Leg Lock