This issue of Primary Care:: Clinics in Office Practice, guest edited by Dr. Peter J. Carek, is devoted to Sports Medicine. Articles in this issue include:: Preparticipation Evaluation; Cardiac Disease in Athletes; Sports Supplements:: Pearls and Pitfalls; Common Prescription Medications Used in Athletes; Female Athletes; Principles of Rehabilitation; Common Upper Extremity Injuries; Hip and Knee Injuries; Ankle and Foot Injuries; Back Injuries; Neck Injuries; and Head Trauma and Injuries.