Cardinals quarterback Drew Stanton (knee) was unable to practice on Friday, just a day removed from a being a limited participant in practice. The Cardinals officially designated Stanton as doubtful for Sunday's contest at home against Seattle. If Stanton can't play, the Cardinals will have Ryan Lindley under center, with a special package also designed for rookie Logan Thomas.
Cardinals linebacker Daryl Washington has been suspended for the entire 2014 season for violating the league's substance-abuse policy. He was suspended four games last season for violating the same policy.