Eagles’ right tackle Lane Johnson is out of tonight’s game in Carolina with a concussion, and his replacement, Halapoulivaati Vaitai, will have his hands full against a Panthers defense that is third in the NFL with 17 sacks. Defensive tackle Fletcher Cox and running back Wendell Smallwood are questionable. The Eagles might opt to rest both of them with some extra time to recover before next Monday’s divisional matchup with the Redskins.