It Sucks! Angry NFL Rips Into Soldier Field's Terrible Turf
NFL players union president blasts Soldier Field conditions
NFLPA president JC Tretter rips NFL's Soldier Field standards
No Company Is Willing to Sign Up”: NFL Players Association
Inside the NFL turf debate: Injuries, safety measures, problems
J.C. Tretter: Breaking News, Rumors & Highlights
NFL slammed by NFLPA's JC Tretter over Soldier Field fiasco
NFLPA president JC Tretter calls for all teams to use grass fields
NFLPA President Calls for Immediate Changes to Fields Amid Injury
Former Browns center, NFLPA president JC Tretter retires