ORCHARD PARK, N.Y. -- A Buffalo Bills defense that has dealt with a variety of injuries this season has yet another as starting nickel cornerback Taron Johnson was added to the team's injury report on Friday and is now questionable for Sunday's game vs. the Kansas City Chiefs .

Johnson was limited in Friday's practice with a groin injury. If he can't go, the team's primary backup nickel has been veteran Cam Lewis .

The Bills are already down multiple defensive players for Sunday's big matchup (4:25 p.m. ET, CBS) as they try to slow down Patrick Mahomes and the Chiefs, including both starting defensive tackles. Ed Oliver (left biceps) is out indefinitely , while DaQuan Jones (left calf) has been ruled out of what will be his third straight game missed.

Buffalo will also b

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