Redskins' Cedric Griffin out Sunday
Griffin did not practice all week and will miss his second consecutive game with a hamstring injury.
Coach Mike Shanahan said Friday that running back Evan Royster is questionable with a sprained right knee.
Cornerback DeAngelo Hall missed Friday's practice with the flu, but he is listed as probable.
The collision left Robinson with a concussion, but he has been cleared to play.
Copyright 2012 by The Associated Press