The Bills will be without their No. 1 running back Sunday.
Among those officially ruled out Sunday by Buffalo was running back LeSean McCoy, who is dealing with a knee injury.
Also ruled out: tight end Charles Clay (on injured reserve with a back injury), linebacker Nigel Bradham (ankle) and wideout Marcus Easley (knee). Cornerback Ronald Darby, who sat out last week with a groin injury, is expected to play, coach Rex Ryan said.