Replacing a legend: Shon Coleman to get first chance to step in for Joe Thomas - ESPN - Cleveland Browns Blog- ESPN
Cleveland Browns: JC Tretter retires from the NFL - Dawgs By Nature
2017 Year in Review: The Cleveland Browns - Dawgs By Nature
NFLPA president JC Tretter rips into the condition of Soldier Field and claims NFL must 'do better'
JC Tretter Retires from NFL at 31; Former Packers, Browns Center Is NFLPA President, News, Scores, Highlights, Stats, and Rumors
JC Tretter, former Cleveland Browns center, retires after 8 seasons in NFL but remains NFLPA president - ESPN
NFLPA president JC Tretter rips NFL's Soldier Field standards
Cleveland Browns guard Wyatt Teller hopes to return from calf strain
Former Browns center JC Tretter retiring after 8 NFL seasons, will stay on as NFLPA president
Browns schedule: A deeper look into 2023 - Dawgs By Nature