Professor Lucas Lepri shows how to take the opponent’s back when they try to roll forward from the turtle position. The opponent is in the turtle position and Lucas is controlling him with his hips and the cross collar. The opponent then tries to escape by rolling forward while Lucas still has the cross collar grip. As the opponent starts to roll, Lucas posts on the mat with his other hand and spins over the opponent to the side. As he lands, Lucas pulls on the collar to bring the opponent to the side control. The opponent tries to turn away, then Lucas takes the back control.