Former Cleveland Browns Center JC Tretter, Retires After 8 Seasons In NFL
JC Tretter, NFLPA president and former Browns center, retires after nine seasons
NFLPA president JC Tretter rips NFL's Soldier Field standards
J.C. Tretter net worth: How much did ex-NFL star earn in salary and contract?
NFLPA president JC Tretter rips NFL's Soldier Field standards
Report: Browns, JC Tretter agree on 3-year contract extension
Former Browns center JC Tretter retires, will stay on as NFLPA president
Why did JC Tretter retire? NFLPA president and former Browns, Packers center explains decision and how NFL may have influenced it
Browns center J.C. Tretter on Baker Mayfield, pressure and facing his hometown Bills