Wide receiver Pierre Garcon (foot) was officially ruled out for the Washington Redskins' home game against the Carolina Panthers on Sunday, and linebacker Perry Riley is questionable with a hamstring injury.
Riley will be a game-time decision after getting in limited work Friday.
"With those hamstrings, you don't know for sure," head coach Mike Shanahan said.
If Riley can't play, Lorenzo Alexander and Keenan Robinson would be worked into the linebacker rotation more.
Shanahan said he hopes that safety Brandon Meriweather will be able to return from his knee injury after the team's bye week following Sunday's game.
DeAngelo Hall is expected to play against the Panthers, as Shanahan said the cornerback isn't expected to be suspended following his ejection for berating an official during last week's loss.
"I think you heard he wasn't going to be suspended. He's going to be fined, but I haven't heard anything officially," said Shanahan."