The Arm Pain Assassin App is a useful tool for players, parents, and coaches to better understand baseball related arm pain and injuries. Randy Sullivan, MPT, has operated a private physical therapy practice for over 20 years. He is also the owner of the Florida Baseball Ranch, formerly known as, The Armory Power Pitching Academy. Inside the Arm Pain Assassin App you will find helpful videos where Randy explains various aspects of elbow and shoulder pain, their potential causes and exercises to help strengthen and protect agains injury. The Arm Pain Assassin App is not intended to offer medical supervision, treatment or advice. If you have a serious injury, call 911 and/or seek immediate medical attention.