The Pittsburgh Steelers are getting thin at linebacker having been bit by the injury bug.

The Steelers might have to wait another week before they get a look at rookie linebacker Ryan Shazier in action.

Coach Mike Tomlin on Thursday said Shazier would be listed as questionable with a knee bruise, but that it was highly unlikely he would play Saturday against the Buffalo Bills.

Shazier has not participated in 11-on-11 drills since returning to practice to take part in individual drills. The Steelers' first-round pick out of Ohio State told ESPN earlier in the week that he planned to play on Saturday.

Second year linebacker Jarvis Jones also was listed as questionable for the Bills' contest. Jones is battling a groin injury.

Linebacker Vince Williams suffered a concussion on Tuesday and must pass the concussion tests before he is cleared to practice or play.

Tomlin said the team would "err on the side of caution."