Williams (back) is inactive Sunday against the Steelers.

EDGE Analysis

The veteran's back aliment emerged Thursday night, causing him to miss Friday's practice and, subsequently, Sunday's game. His absence leaves a big whole in the Bills' defensive line that Leger Douzable will attempt to fill Sunday.

Williams did not practice Friday due to a back injury and is listed as questionable for Sunday's game against the Steelers, ESPN's Mike Rodak reports.

EDGE Analysis

Coach Rex Ryan says the injury cropped up Thursday night and there's a worry Williams might not be able to go in two days. Since Williams is one of the keys to Ryan's system, any absence would be a big loss as the team tries to save its playoff hopes.

Williams missed Friday's practice due to illness.

EDGE Analysis

With the Bills not playing until Monday, we imagine the defensive lineman will be ready to play in Seattle, but practicing to some extent Saturday would certainly assist that belief.

Williams (neck) is active for Sunday's game in Miami.

EDGE Analysis

Williams was limited in practice this week but there was never much doubt he'd play Week 7. He'll start at defensive end opposite Adolphus Washington.

Williams (neck) practiced on a limited basis for the second straight day Friday, and is listed as questionable for Sunday's game in Miami.

EDGE Analysis

While he's listed as questionable for Sunday's contest, we'd be shocked if the veteran didn't suit up. Williams already has 23 tackles and 1.5 sacks on the season, surpassing the marks he put up in an injury-marred 2015.

Williams has been awarded a full sack instead of a half sack as originally credited during Sunday's win over the Cardinals, BuffaloBills.com reports. Williams now has an official 1.5 sacks for the game after sharing another one.

EDGE Analysis

Those are also Williams' first 1.5 sacks of the season, though he's already up to 13 tackles following a disappointing 14 over six games played in 2015.

Williams has accrued nine total tackles through two games, though he's still looking for his first sack.

EDGE Analysis

Williams missed 10 games due to injury last season and seemed to struggle in Rex Ryan's defensive system for the other six. He does seem more comfortable this time around, and while we're almost certain the 33-year-old will never approach double-digit sacks like he reached in 2013, he might be able to get you some modest tackle totals, especially if your league still qualifies him at defensive tackle.

Williams, who was activated off the PUP list Monday, has been practicing all week.

EDGE Analysis

We'll see if Williams plays in the team's preseason opener Saturday, though there's a noticeable difference in the defense when Williams and Marcell Dareus are out there at the same time.

Williams suffered a suspected concussion in Thursday's practice, Joe Buscaglia of WKBW reports.

EDGE Analysis

This comes as a sigh of relief for Bills fans, as it originally appeared like Williams suffered a neck injury. However, the team will is still likely to be cautious with their veteran defensive tackle if he did indeed suffer a concussion. Don't expect him back on the field until all of his symptoms have passed.

Williams was activated off the PUP Monday and is expected to practice, Chris Brown of Buffalobills.com reports.

EDGE Analysis

Bills GM Doug Whaley said from the start that he felt Williams could be ready for Week 1, and with this activation, that looks to be the case. Buffalo's defense struggled in the 10 games Williams missed with injury last season, and should he stay healthy this time around, his presence should help elevate the team's young defensive unit in 2016 back to the level it once was.