Professor Lucas Lepri teaches how to get the triangle submission from the closed guard, by breaking the opponent’s posture down and using their reaction. Lucas has the opponent in his closed guard. He controls the opponent’s head to break the posture. When the opponent pushes to move away, Lucas immediately comes up with him and uses his arm to bump him to the side. This makes the opponent post with his hand on the mat. Lucas takes advantage of the arm and slides his leg out and over to get the triangle submission.