What Is The Penny drill?

With beginners ( children and adults) sometimes it’s hard for them to control the racquet face and keep it perpendicular.

It’s either launched to the sky or dumped into the net.

Place a penny anywhere on the top of the frame and have them slowly go through their swinging motion.

Whenever the balls start flying too high or low, just say “remember the penny” and they immediately correct the racket face on their own. 

From John Carrizosa
Palos Verdes Tennis Club