Professor Lucas Lepri shows a rear naked choke defense by throwing the opponent and finishing with and armbar. The opponent grabs Lucas’ neck from behind. Lucas grabs the opponent's arm to defend his neck. He then squats down and loads the opponent onto his back. Lucas then twists his torso making the opponent fall over him to the ground. As the opponent hits the ground, Lucas makes sure to keep hold of the arm. As he is standing over the opponent while holding the arm, he then steps over the opponent's head with his left leg, sits down and traps the opponent's arm getting the armbar submission.