Cowboys' All-Pro center Frederick retires, Sports
Did Cowboys Know All Along Travis Frederick Would Retire? ✭ Inside The Star
Dallas Cowboys could trade down, draft new center in first round
Former Cowboys Center Phil Costa Retires From Football, Current Center Travis Frederick Gearing Up For Second Season - Blogging The Boys
Cowboys' Travis Frederick retires at 29 after battling autoimmune disease - ESPN
The Dallas Cowboys don't need to draft Travis Frederick's replacement
Cowboys center Travis Frederick retires
Travis Frederick Stats, News and Video - C
Travis Frederick - Wikipedia
Retired Cowboys center Travis Frederick tackles ending child hunger : r/nfl