BUFFALO, N.Y. -- The Buffalo Bills have some defensive question marks going into Sunday's AFC Championship rematch with the Kansas City Chiefs.
Coach Sean McDermott said Monday that starting cornerback Christian Benford is in concussion protocol. He suffered the injury during a final onside kick attempt by the Baltimore Ravens in the Bills' win Saturday in the divisional round.
Former first-round pick Kaiir Elam has filled in most recently when one of the team's outside cornerbacks missed a game; he has made four starts this year. Defensive back Ja'Marcus Ingram is another option if Benford does not clear protocol.