Luckily he hadnt grabbed the shield with his hand, and had instead used the blade of his knife as a lever.Using his knife arm as leverage the masked man rolled to his right around the shield as she tried to push forward. This motion would twist the shortsword and rip it free as he rolled. It also had the added benefit of not getting him crushed or burned. Finishing the roll he would rise to his feet and ready himself in the same position as earlier.