Health and Safety Topics: Heat Safety Information on how to avoid and treat heat exhaustion, heat stroke, dehydration and other heat-related illnesses. Concussion Awareness Parents, players, coaches, and referees are encouraged to take this online training to recognize the signs and respond to possible head injuries. Osgood Schlatter An overuse syndrome that causes pain, swelling and tenderness just below the kneecap. Injuries/Insurance Insurance coverage and claim forms, AYSO Heading Policy In response to concerns over the long-term results of heading the ball, AYSO has adopted this policy. Also discusses the concerns.