Underhook Attacks: Locking the Knee Shield

Attacking with the underhook from bottom half guard requires preventing the opponent from smashing you and maintaining a position where you are comfortable and the opponent is uncomfortable. A strong knee shield position is essential, and a small adjustment can significantly improve its effectiveness.

1. Instead of keeping the bottom leg flat and parallel to the mat, lengthen the bottom leg and push the knee through so that the hip almost touches the mat.
2. Cross your feet while ensuring that the top knee goes fully across the opponent's belly, creating a 'T' formation with your legs rather than a 'V'.
3. With your feet crossed and the knee shield firmly in place, your partner should feel discomfort when they apply pressure, indicating the position is correct.
4. Communicate with your partner to adjust the pressure they apply. The more pressure they put in, the more discomfort they should feel, which is beneficial for you.
5. Practice the drill by having your partner apply weight and attempt to hug or underhook you. Shoot the bottom leg through to maintain a comfortable and controlled bottom half guard.

This foundational position sets the stage for launching effective attacks from the bottom half guard.