We have a pitcher on our team who is a closed style pitcher. Her pitch looks to be illegal but we are not sure. She pushes off of the pitching rubber with her right foot, steps out and pushes off of the ground with her left foot then releases the ball at the same time she is stepping and bringing her right knee up. Seems like she is getting an extra push off using her left foot. We are concerned about having illegal pitching calls on this in tournaments.