ILLUSTRATION: Defending the goal

March 29, 2013 | 6:00 a.m. CDT
Missouri goalkeeper Shelby Sonnefeldt hurt her shoulder years ago while diving for a ball. She landed on her right shoulder and dislocated it, tearing her labrum, a piece of cartlidge that cups the head of the humerus
in the socket. Despite a successful surgery to repair the labrum, Sonnefeldt has had numerous dislocations since the initial injury and consequently stretched her shoulder capsule, a sheath of tendons that surround the shoulder joint and hold it together.