Cleveland Brown JC Tretter tests positive for COVID-19; two activated
NFL studying helmet face guard that works like surgical mask
NFL won't be cutting in line for COVID-19 vaccine, Sports
Cleveland's J.C. Tretter Elected President of N.F.L. Union - The New York Times
NFLPA president: CBA 'no' vote would've meant different world for players
NFLPA president J.C. Tretter of Browns says league is working toward COVID-19 game plan – Morning Journal
J.C. Tretter warned us the Cleveland Browns, NFL injury bug was coming
The NFL cast JC Tretter out; the NFLPA president says that only makes him more powerful - Sports Illustrated
NFLPA President J.C. Tretter Comments on Browns Contract for Deshaun Watson - Sports4CLE, 4/12/22
Analysis: How the NFL got through the pandemic and to 2021
JC Tretter says Browns 'have done a really great job' with COVID-19 protocols, continues work for player safety
Closing time: Roethlisberger eyes goodbye as Browns visit
JC Tretter says Browns 'have done a really great job' with COVID-19 protocols, continues work for player safety
NFL Studying Helmet Face Guard That Works Like Surgical Mask – NBC4 Washington