Cowboys' center Frederick has neurological disorder, Sports
Dallas Cowboys offensive lineman Travis Frederick diagnosed with Guillain Barre Syndrome - ESPN
Travis Frederick: Cowboys center out indefinitely with rare autoimmune disorder - Bleeding Green Nation
Former Badger and Pro Bowler Travis Frederick has autoimmune disease
Travis Frederick to be active for start of Cowboys camp
Dallas Cowboys center Travis Frederick has a rare neurological disorder
Cowboys' Travis Frederick Announces Retirement at 29; Played 7 NFL Seasons, News, Scores, Highlights, Stats, and Rumors
Cowboys' Travis Frederick: What Is Guillain-Barré Syndrome?
Former Wisconsin Badgers center Travis Frederick retires after 7 NFL seasons
Long Road Left In Front Of Travis Frederick
Cowboys center Travis Frederick's retirement proof of ever-changing NFL - ESPN - Dallas Cowboys Blog- ESPN
Travis Frederick discusses his fight with Guillain-Barré
Retired Cowboys center Travis Frederick tackles ending child hunger - ESPN - Dallas Cowboys Blog- ESPN
Dallas Cowboys center Travis Frederick has neurological disorder
Cowboys center Travis Frederick announces retirement at age 29