NFLPA president JC Tretter calls for turf ban amid rise of injuries
Former Browns center JC Tretter announces retirement from NFL
Browns center JC Tretter elected president of NFLPA
NFLPA President J.C. Tretter Comments on Browns Contract for
Browns All-Pro Joel Bitonio Puzzled Why JC Tretter Remains
Cleveland Browns center JC Tretter elected new NFLPA president
Browns center, NFLPA president JC Tretter calls for end to NFL's
NFLPA president missing from rosters 'suspicious,' ex-Browns
J.C. Tretter '13's path from ILR to the Cleveland Browns and NFLPA
Browns' JC Tretter, NFLPA president, pumps brakes on report of
The NFL cast JC Tretter out; the NFLPA president says that only