Pittsburgh Steelers veteran defensive end Aaron Smith is still a question mark for the Super Bowl.

The Smith underwent surgery to repair a torn triceps tendon in the season and has not played since.

He was limited in practice today.

At the same time, a star safety Troy Polamalu did not practice because of his Achilles injury. However, did you sleep regularly during the week and then play.

Neither practiced today: safety Will Allen (knee), cornerback Bryant McFadden (abdomen), rookie center Maurkice Pouncey, who should not play because of a sprained ankle, receiver Emmanuel Sanders (foot) and offensive tackle Jonathan Scott (ribs).

Green Bay Packers did not practice today.

Therefore, their injury report is an estimate.

Unable to practice: linebacker Erik Walden (ankle) and Frank Zombo (knee).

The following players are limited linebacker Desmond Bishop (ankle), offensive tackle Chad Clifton (neck), linebacker AJ Hawk (knee), wing Greg Jennings (knee) and center Jason Spitz (calf).