Professor Lucas Lepri Lucas Lepri demonstrates how to pass an oppon Control or Back Takeent’s guard who is using the De La Riva. Lucas starts by pushing both of the opponent’s legs down. As the opponent reacts, Lucas immediately straightens his leg and leg drags the opponent’s leg trapping the ankle with his elbow and thigh. In this scenario, the opponent tries to circle their leg back and Lucas blocks the hip and pushes the other knee down so he can fall on the opponent controlling the hips. Depending on the opponent’s reaction, Lucas can then transition to the side control or take the back.