Rookie quarterback Matthew Stafford (knee) is officially listed on Friday’s injury report as questionable for Sunday’s home game against the Pittsburgh Steelers.

Strong safety Ko Simpson, who started on Sunday at Chicago, is listed as questionable for Sunday’s game. He injured his hamstring against the Bears and hasn’t practiced all week.

Defensive tackle Sammie Hill (ankle) and defensive end Dewayne White (hamstring) did not practice Friday and are doubtful for Sunday. Both of them also missed last Sunday’s game at Chicago.

Defensive tackle Grady Jackson (knee) also did not practice and is probable. Defensive end Cliff Avril (hamstring) practiced full-go and is listed as questionable.

Wide receiver Calvin Johnson (thigh), tight end Brandon Pettigrew (hamstring) and linebacker Ernie Sims (shoulder) were limited in practice Friday and are probable for Sunday along with running back Kevin Smith (shoulder).

Tackle Gosder Cherilus (shoulder) and safety Kalvin Pearson (quad) were also limited in practice and are questionable.

For the Steelers, running back Willie Parker (toe) is out for Sunday while safety Troy Polamalu (knee) is doubtful. Parker didn’t practice on Friday, while Polamalu was limited.
— PAULA PASCHE