There’s still no word about the specific ailment, but it looks like the rookie is going to be out for a while. Tyler Dunne of the Buffalo News reports, via a source, that the injury is “serious” and that Williams will miss multiple weeks while he recovers.
Williams’s injury adds to the injury woes that have thinned out a position of strength for the Bills over the last few weeks. Anthony Dixon has been out with a calf injury and hamstring woes have sidelined Fred Jackson and Bryce Brown, which left the team with LeSean McCoy and Bronson Hill as their healthy backs heading into Tuesday’s practice. Williams had passed Brown on the depth chart putting him as the team's RB3 so it's unfortunate timing for Williams.