Thompson left Sunday's game against the Bengals due to a heel injury and is questionable to return, Darin Gantt of the Panthers' official site reports.
Thompson is more likely to be doubtful after he was carted off the field to the locker room, per Sheena Quick of Fox Sports Radio 1340. With Josey Jewell (hamstring) doubtful to return, Claudin Cherelus and Trevin Wallace will be the primary inside linebackers for the rest of Sunday's game.