The NFL cast JC Tretter out; the NFLPA president says that only
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JC Tretter Retires from NFL at 31; Former Packers, Browns Center
JC Tretter's term as NFLPA president has included pandemic
JC Tretter, NFLPA president and former Browns center, retires
NFLPA President JC Tretter criticizes league on vaccine wristbands
Browns release JC Tretter, turning to Nick Harris at center
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Browns Release JC Tretter, Union President; Meeting Watson - Erie
Browns should seriously consider bringing back JC Tretter
NFLPA President J.C. Tretter Comments on Browns Contract for
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Browns starting center Tretter returns to practice after surgery
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After draft, some obstacles ahead for NFL in 2021