A.J. Klein, Panthers linebacker, #56, pursues a ball carrier during the team's minicamp Thursday. The Carolina Panthers continued their minicamp on Thursday, June 16, 2016. John D. Simmons jsimmons@charlotteobserver.com

Carolina Panthers linebacker A.J. Klein was listed on Monday’s “did not practice” list with a concussion, and has entered the NFL’s protocol.

Klein has filled in for starting linebacker Shaq Thompson (knee) for the past two weeks.

Also on the DNP list was left tackle Michael Oher, who is still in the concussion protocol and has been for approximately 50 days, plus running back Jonathan Stewart (rest) and backup center Gino Gradkowski, who is dealing with a knee injury but played on Sunday.

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Starting center Ryan Kalil was on the :limited” list according to the team, as he continues to recover from a shoulder sprain.

Safety and special teams standout Colin Jones was also limited after going through the concussion protocol last week, as was Thompson.

The list is an estimation, as the team did not practice on Monday due to the short week.

Jourdan Rodrigue: 704-358-5071, @jourdanrodrigue

This story was originally published November 14, 2016 6:57 PM.