Former Packers Center JC Tretter Announces NFL Retirement
Cleveland Browns JC Tretter: Everyone needs to make the best decision - Dawgs By Nature
Cleveland Browns will have decisions to make at offensive guard
For offseason workouts, NFL players negotiated directly with their coaches - The Boston Globe
Tretter: Players wanted Browns vs Raiders game played
NFLPA president JC Tretter elaborates on offseason workout concerns - NBC Sports
Former Browns center JC Tretter announces retirement from NFL
Around the AFC North: It's 'Championship Or Bust' Mode in Cleveland
J.C. Tretter: NFL wanted to cancel 3 games last week
JC Tretter: Brown center on NFL in coronavirus world