Muscle strength and flexibility are the best defense against lower extremity soccer injuries. Dr. Riley Williams, associate professor of orthopedic surgery at Weill Medical College in New York and medical director for the New York Red Bulls professional soccer club, tells host Dr. Sherwin Ho why Pilates is the preferred off season strength training method. In the second half of the interview they discuss the prevention, diagnosis and correction of hip injuries.  When is surgery necessary to get the player back in the game?