“The Silver Fox” Karel Pravec recently paid a visit to Firas Zahabi and The Tristar Gym in Montreal, Quebec. Pravec, a black belt under Renzo Gracie and author of Fluid Jiu-Jitsu, is not a young, big, or strong BJJ player. If you have ever seen him roll, he truly does rely on technique and moves like water. Pravec, who is over 30, still trains seven days a week. In the video below, Pravec and Zahabi discuss his BJJ training philosophies as well as his knee on belly escape to knee bar set up and guillotine to anaconda choke transition. Watch the full video below.