Professor Lucas demonstrates a fast and highly efficient over under pass to counter the De La Riva guard when an opponent holds the pants and collar. The entry begins by blocking the opponent's knee, pushing the leg down, and executing a backstep while dropping the right knee directly onto the opponent's calf to break their grip. To flatten the hips and neutralize mobility, Lucas secures a grip on the belt or lower back and drives the knee forward, keeping the trailing leg up to avoid being trapped in a reverse triangle. As the opponent attempts to turn away to defend, Lucas follows the movement, locks the hands together, and slides the knee deep to establish tight control and transition directly into a back take or an armbar finish.