Bills' Kyle Williams doubtful for Sunday's game vs. Lions

The Buffalo Bills' strong defensive line may be without one of its most reliable players for Sunday's game against the Detroit Lions.

After suffering a knee injury in last week's loss to the Houston Texans, defensive tackle Kyle Williams has yet to practice this week and is officially doubtful to play.

A timetable for his return hasn't been established, but Williams not being able to suit up would be a big loss for the Bills, who have found success in their ability to stop the run.