The Lions placed Barclay on injured reserve Tuesday with a concussion.
Barclay played every snap in the Lions' Week 16 loss to the Bengals before being diagnosed with the concussion afterward. He's the third different offensive lineman to report a concussion following a game this season, with T.J. Lang and Travis Swanson preceding him. Detroit will replace Barclay on the 53-man roster with tight end Hakeem Valles.