JC Tretter's busy offseason centers on helping new teammates, players around NFL acclimate to unique circumstances
Offseason In Review: Cleveland Browns
The NFL cast JC Tretter out; the NFLPA president says that only makes him more powerful - Sports Illustrated
NFL free agency tracker 2022: Live updates on news, rumors, signings and trades
NFL Players Association president calls for grass surfaces to be used, NFL News
JC Tretter Retires From NFL After Nine-Year Career - Sports Illustrated
Browns safety Grant Delpit leaves Bears game, questionable to return with a hip injury
Offseason In Review: Cleveland Browns
JC Tretter Retires from NFL at 31; Former Packers, Browns Center Is NFLPA President, News, Scores, Highlights, Stats, and Rumors
Veteran center J.C. Tretter to retire from NFL
Former Browns center, NFLPA president JC Tretter retires - The San Diego Union-Tribune