JC Tretter Retires From NFL After Nine-Year Career - Sports Illustrated
3 Big Takeaways: Rookies carry Browns to first preseason win
Former Browns center JC Tretter retiring after 8 NFL seasons, will stay on as NFLPA president
Joel Bitonio wonders whether JC Tretter is being blackballed for his stance on player safety - NBC Sports
Should signing J.C. Tretter be the Ravens' next move? - Baltimore Beatdown
JC Tretter talks Cleveland Browns players' stance with Stefanski, Berry
Browns release C JC Tretter
ILR to the NFL The ILR School
Browns' JC Tretter to play in 2020 after talking to medical experts as he, wife expect child
Center JC Tretter, the president of the NFLPA, is getting released by the Cleveland Browns, per source.
Former Browns center, NFLPA president JC Tretter retires
How Cleveland Browns' JC Tretter handles NFLPA presidency in pandemic