Cleveland's J.C. Tretter Elected President of N.F.L. Union - The New York Times
Browns' offensive snap counts, stats, and PFF notes: Week 1 - Dawgs By Nature
JC Tretter Stats, News and Video - C
Pro Bowl guard Teller aiming for Browns turnaround NFL - Bally Sports
Cleveland Browns, National Football League, News, Scores, Highlights, Injuries, Stats, Standings, and Rumors
2022 Cleveland Browns season - Wikipedia
Cleveland Browns: Tretter, Bitonio remain among league's best - Dawgs By Nature
JC Tretter Stats, News and Video - C
Tretter '13 Readies For Ninth NFL Season - Cornell University Athletics
Sources: NFL discussed cancellations due to COVID-19
OBR Analytics: Grading the Browns Offensive Depth Chart
Cleveland Browns' Joe Thomas ranked NFL's 2nd best pass blocker
Former Browns C JC Tretter Announces Retirement, 'Doubling Down' In Role As NFLPA President - Steelers Depot
Offseason In Review: Cleveland Browns