Orchard Park, NY (SportsNetwork.com) - Buffalo Bills defensive tackle Kyle Williams is listed as questionable for Sunday's game against the Falcons in Toronto.
Williams, who has battled a lingering Achilles' tendon injury this season, was unable to practice Friday due to a flare up with his lower back.
"It was fun this morning. I think I woke everybody up," Williams said on the team's website. "I guess I slept on it wrong and when I stepped to get out of bed it cinched up on me."
Williams has 48 tackles and seven sacks in 11 games this season.