Kalil (shoulder) was placed on injured reserve Tuesday, Max Henson of the team's official site reports.

After not making the trip to Oakland this past Sunday, the Panthers decided to place the veteran lineman on injured reserve. The team also placed Kalil's backup, Gio Gradkowski (knee), on IR after he was forced to leave Sunday's game. The Panthers now have a major hole in their offensive line, signing center Ryan Wendell and tackle Dan France on Tuesday to try and fill the void.

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