Moore is working his way through concussion protocol, Scott Petrak of the Elyria Chronicle-Telegram reports.
Browns head coach Kevin Stefanski didn't specify that Moore has a concussion, so it's possible that his placement in protocol is precautionary. The wideout left practice early Friday and was subsequently evaluated for a concussion. It remains to be seen if he'll be ready to play in Cleveland's first preseason game against Green Bay on Saturday, Aug. 10.