David Bakhtiari - Wikipedia
Browns release JC Tretter, turning to Nick Harris at center
Former Browns, Packers center JC Tretter announces retirement
Browns' Jedrick Wills Jr. will remain at left tackle, center JC
Browns release JC Tretter, turning to Nick Harris at center
Green and Bold: Packers O-Line on the Brink of Disaster
Packers: Green Bay center J.C. Tretter will sign with Cleveland
Former Packers OL J.C. Tretter Voted NFLPA President - Sports
Playing or not, JC Tretter a true pro for Packers
Report: Browns trying to sign Packers OL J.C. Tretter
Sherrod, Tretter earn high marks in return to action
JC Tretter on Twitter] onto the next chapter : r/Browns
Packers' Bryan Bulaga: To Re-Sign, or Not to Re-Sign?
Former Packers center JC Tretter voted NFLPA president - Acme