Culp exited Saturday night's preseason game against the Bengals with a head injury and is being evaluated for a concussion, Scott Smith of the Buccaneers' official site reports.
At the time of his exit, Culp led the Bucs with four first-half targets in the passing game, but he caught just one for six yards. Culp was a seventh-round pick out of Washington back in April and is vying for a job behind Cade Otton in Tampa Bay.