Stafford has missed four of five practices this week, including Friday's, with a right knee injury suffered Oct. 8 at Chicago. But coach Jim Schwartz says he won't decide until Sunday morning whether the No. 1 overall draft pick will play against the Packers.
Wide receiver Calvin Johnson, Detroit's leading receiver, also did not practice Friday and is questionable for Sunday's game. His right knee was injured in Sunday's loss to Pittsburgh.
