JC Tretter - Cleveland Browns Center - ESPN
Browns center and union president JC Tretter wants COVID-19 testing to continue – Morning Journal
Cleveland's J.C. Tretter Elected President of N.F.L. Union - The New York Times
NFLPA President criticizes league on vaccine wristbands
JC TRETTER RE-ELECTED AS PRESIDENT OF NFL PLAYERS ASSOCIATION
Browns' Tretter calls for discipline against K.C. assistant
NFL players call for virtual offseason, shun in-person work
Browns center JC Tretter re-elected as NFLPA president for a second term
Center JC Tretter candidate to become NFLPA president - BrownsZone with Scott Petrak
JC Tretter: Union pushed for postponements to get players paid after NFL wanted to cancel games
Akron native J.C. Tretter retires from NFL after eight seasons
JC Tretter: Brown center on NFL in coronavirus world