Bills DT Kyle Williams (back) is inactive for today's game against the Steelers. His back "locked up" Thursday night and kept him out of Friday's practice. Williams' absence weakens both the run defense and pass rush for a D dealing with a tough Steelers squad.

Bills DT Kyle Williams (groin) is questionable for Sunday's game against the Colts. According to the AP, coaches expect Williams to play. He carries IDP upside against a struggling O-line that will be without C Ryan Kelly.

Bills DT Kyle Williams (back) returned to limited practice Friday after missing the 1st 2 days and last Sunday's game against the Steelers. Williams will be a game-time decision for this Sunday's game against the Browns, according to The Associated Press. We'll see about his status Sunday, though there's obvious risk even if he's active.

Bills DT Kyle Williams missed practice Friday and is questionable for Sunday's game against the Steelers after his back "locked up" Thursday night, according to ESPN's Mike Rodak. HC Rex Ryan admitted he's "concerned" about Williams' status for the game. Even if he does play, the back situation would seem to add some risk. Try to make other plans on the D-line in your IDP league, if you can.

Bills DT Kyle Williams left Sunday's game after suffering a sprained PCL, according to Sal Capaccio of WGR 550. The team will reportedly test it further, though, to check on the extent of the damage. If it does prove to be a sprained ligament, we should expect Williams to miss about 3 weeks. If we don't get a more positive diagnosis, then IDP owners can go ahead and drop Williams.

Bills DT Kyle Williams is active today against the Falcons.  He turned up questionable after awaking with lower-back spasms Friday.  He's a strong IDP option in a high-ceiling matchup.