Coach Chan Gailey said it's too early to determine the severity of the injury to Posluszny because the player is scheduled to have further tests following a 15-10 season-opening loss to the Miami Dolphins. Though Gailey said the injury could be "short term," he didn't rule out the possibility that it could be significant.
Trainers examined Posluszny's right knee before having him jog off the field. Posluszny returned a few minutes later and ran along the sideline while wearing what appeared to be a brace before he was escorted back to the locker room.
The Bills are already thin at linebacker. Reggie Torbor did not play Sunday because of a chest injury, while Kawika Mitchell was placed on injured reserve Friday due to a foot injury.
To replace Mitchell, Buffalo signed free-agent linebacker Akin Ayodele, who was inactive on Sunday.
Buffalo reserve free safety Cary Harris did not return after pulling a hamstring. Gailey said it was too early to determine the severity of the injury.
Copyright 2010 by The Associated Press