Volley
Nothing is more satisfying than finishing off a point with a volley after a long rally. Player's who are not as comfortable at the net, tend to let the wrist break on impact due either to nervousness or a weak wrist or both, especially on the backhand side. The goal with the exercise is to strengthen the wrist to avoid resorting to a two-handed backhand volley which limits your reach.

Exercise:
Pro Racket Plates are an excellent way to strengthen the wrist and forearm muscles by simply holding the racket up in the typical "V" formation formed by the arm and racket. The added weight will reinforce the "feel" in your mind as to how important it is to keep the racket head up and to keep the "V" formation even after impact. Shadow-swing 10-20 times, both sides of the volley, with more focus on the backhand volley.