Treat it as an emergency shot, use a motion similar to a lob (drop racket head, snap wrist, use legs), and aim high on the back wall to ensure the ball goes up and away from you.
This lesson is very useful for understanding a specific defensive technique. The coach emphasizes that hitting the ball off the back wall, known as "La Contra," should be your last resort, used only when necessary. The coach provides clear tips on the correct motion, comparing it to a lob, and crucially, explains how to do it safely to avoid hitting yourself. Understanding these principles can help you use this shot effectively when you have no other options.