|TE Desmond Clark||Rib||Doubtful|
|LB Pisa Tinoisamoa||Knee||Doubtful|
|S Al Afalava||Shoulder||Probable||DE Mark Anderson||Toe||Probable||DT Tommie Harris||Knee||Probable||S Danieal Manning||Back||Probable||G Frank Omiyale||Ankle||Probable|
|S Troy Polamalu||Knee||OUT|
|WR Limas Sweed||Foot||OUT|
|CB Ike Taylor||Not Injury Related||Probable||LB Lawrence Timmons||Ankle||Probable|
Bears Offense vs. Steelers Defense
Just like the Bears, it would seem likely that the Steelers will be missing two key defenders for Sunday's contest. Strong safety Troy Polamalu injured his knee in the opener against Tennessee. Veteran Tyrone Carter is expected to assume those duties until he returns. Inside linebacker Lawrence Timmons was making progress overcoming a sprained ankle that was bothering him in the preseason, but he suffered a setback during Wednesday's practice. Keyaron Fox received the start against the Titans and responded well. He led the Steelers with 10 tackles and a fumble recovery.
Pittsburgh had easily the best defense in the NFL last season. Their ends are not going to be as big as the mammoths the Bears faced against the Packers. However, their ends and linebackers are more proven pass rushers. The loss of Polamalu doesn't mean they won't be a huge challenge for Chicago. Carter is only 5-9 and may see matchup problems against taller pass catchers like Olsen. Olsen was a focal point of the Packers' coverage and will be looking to make a bigger impact this week. The Bears can expect the Steelers to use some very complex blitz schemes to challenge protection and force Jay Cutler into mistakes. Expect the Bears to get their running game going to establish a more controlled tempo than they showed in Green Bay.
Steelers Offense vs. Bears Defense
Running back Willie Parker has been nursing a sore hamstring since the preseason. He and former Illini standout Rashard Mendenhall are coming back from injury-riddled seasons. Neither of them got off to a good start last week against Tennessee. Rookie Frank Summers receives starting duty at fullback since Sean McHugh was lost in the preseason. They aren't force-feeding Summers into the action. The Steelers run mostly three-wide and two-tight sets without a fullback. Wide receiver Limas Sweed sprained his foot during Wednesday's practice.
The Steelers will want to get their running game going against the Bears after managing just 36 rushing yards versus the Titans. Look for the Bears to test a suspect offensive line early and often. Chicago will continue to rotate fresh bodies into the defensive line to keep the energy level at its highest. Expect the Steelers to look for matchups in those personnel groupings that they can exploit.
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