Bears playing hurt

Injured tight end Desmond Clark was not on the field for the start of practice Wednesday afternoon at Halas Hall and is expected to be out for Sunday’s home opener against the Steelers and possibly for another couple weeks with a rib injury.

Second-year tight end Kellen Davis will move into Clark’s role, which is significant given the amount of plays the Bears run with a second tight end in addition to starter Greg Olsen.

Also sitting out Wednesday’s practice and presumed out for Sunday were strong-side linebacker Pisa Tinoisamoa and backup cornerback Trumaine McBride, both of whom suffered sprained knees against the Packers. Defensive end Mark Anderson also did not practice because of a toe injury, but he may be available Sunday. Nick Roach, a nine-game starter last season, will replace Tinoisamoa.

Three players were limited at Wednesday’s practice: defensive tackle Tommie Harris (knee), guard Frank Omiyale (ankle) and safety Al Afalava (shoulder). All three are expected to play on Sunday.

Safety Danieal Manning (back) was not listed on the original injury report, but he also did not practice.