The NFL cast JC Tretter out; the NFLPA president says that only makes him more powerful - Sports Illustrated
Browns center JC Tretter described as 'Alex Mack-esque'
JC Tretter announces retirement - BrownsZone with Scott Petrak
JC Tretter Retires from NFL at 31; Former Packers, Browns Center Is NFLPA President, News, Scores, Highlights, Stats, and Rumors
Former Browns center, NFLPA president JC Tretter retires
JC Tretter, former Cleveland Browns center, retires after 8 seasons in NFL but remains NFLPA president - ESPN
J.C. Tretter: Breaking News, Rumors & Highlights
All aTwitter: 26 August 2022 - Hogs Haven
JC Tretter, NFLPA president and former Browns center, retires after nine seasons
Should Dolphins Quarterback Tua Tagovailoa retire from the NFL?
J. C. Tretter - Game Time with Boomer Esiason
J.C. Tretter, WELCOME TO RETIREMENT 👏
In Browns preseason finale Baker Mayfield impresses Drew Brees
Browns center JC Tretter shoulders heavy responsibility of protecting players as president of NFL union