Why did JC Tretter retire? NFLPA president and former Browns, Packers center explains decision and how NFL may have influenced it
JC Tretter, NFLPA president and former Browns center, retires after nine seasons
NFLPA President JC Tretter on the current state of the RB market #nfl
NFLPA President JC Tretter Strongly Criticizes NFL Coronavirus Response - Sports Illustrated Atlanta Falcons News, Analysis and More
Cleveland's J.C. Tretter Elected President of N.F.L. Union - The New York Times
NFLPA president JC Tretter says 'hurdles' remain before NFL's return
JC Tretter: NFLPA has not agreed to any reopening plan - NBC Sports
NFL news: NFLPA President JC Tretter speaks out on pandemic
Packers Free Agency: JC Tretter set to sign with Cleveland Browns, per report - Acme Packing Company
NFLPA president JC Tretter calls for turf ban amid rise of injuries
NFLPA president JC Tretter seeks end of minicamps, OTAs - ESPN
The NFL cast JC Tretter out; the NFLPA president says that only makes him more powerful - Sports Illustrated