Whitner (concussion) is out for the remainder of Sunday's game against the Cardinals with a concussion, Nate Ulrich of the Akron Beacon Journal reports.

EDGE Analysis

Whitner suffered a concussion during Sunday's game, but the degree of the head injury is still unknown. The Browns have a quick turnaround this week with a Thursday night game against the Bengals coming up, which may not offer enough time for Whitner to pass concussion protocol tests. Look for Ibraheim Campbell to play in Whitner's place.