Professor Lucas Lepri demonstrates how to trap the opponent’s arm in the closed guard and transition to the armbar submission. Lucas breaks the opponent’s posture in the closed guard and traps the arm. He uses his other hand to under hook the opponent’s opposite leg from the trapped arm. Lucas then opens his guard and slides his hips to the side so he start climbing up the opponent with his legs. Once his legs are high enough, Lucas brings one leg over the opponent’s head and finishes the armbar submission.