Steelers' Harrison, Polamalu, Mendenhall expected to play Sunday against Eagles

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PITTSBURGH - Pittsburgh Steelers linebacker James Harrison, safety Troy Polamalu and running back Rashard Mendenhall practiced on Friday and are expect to play this Sunday against the Philadelphia Eagles, according to Channel 11’s Bill Phillips.

"He definitely makes a difference," teammate LaMarr Woodley said of Harrison. "Then, (offenses) kind of have to pick their poison."

Meantime, Steelers rookie offensive guard David DeCastro's injured right knee is feeling better, and the first-round pick is optimistic he'll return at some point this season.

DeCastro underwent surgery last month to repair damage suffered when the knee buckled in grisly fashion during a preseason win over Buffalo on Aug. 25.

The Steelers placed him on the injured reserve-recall list, meaning he could be activated at some point during the second half of the year.