Kirkwood reverted to the Panthers' practice squad Monday, per the NFL's official transaction log.
Kirkwood was called upon with Terrace Marshall (concussion) unable to play Sunday against the Falcons. Kirkwood played 47 percent of the Panthers' offensive snaps, filing in behind only DJ Moore and Robby Anderson at wide receiver. Despite the abundance of snaps, Kirkwood only had one target, which he was unable to corral. If Marshall can't go Week 9 against the Giants, Kirkwood will hope to be elevated to the active roster again.