Joseph Correa is a professional tennis player and coach that has competed and taught all over the world in ITF and ATP tournaments for many years. Besides being a professional tennis player he has a USPTR professional coaching certification and ITF kids coaching certification.Tennis Abs is a great way strengthen your core for more powerfull serves, forehands and backhands as well as stronger volleys. Abs are key for a better game. This DVD works on many types of crunches, sit-ups, and lateral ab and back exercises that you wont find in other abdominal videos. Feel confident when changing your shirt during your match and hit the ball harder!