At the Orange Bowl, Liam Caruana and I had some great training sessions while it rained. Here is a small clip of Liam working his core with a medicine ball.
You can perform this exercise with your coach or friend. Have him catch the ball and toss it back to you. If you have a wall, that may work as well. Just be sure that it is sturdy!
Try starting with a 4 pound ball and working your way up the medicine ball ladder!
Pauly P