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Steelers' Polamalu questionable 'at best' vs. Chiefs

Tuesday, November 17, 2009 - 12:51pm

Steelers star safety Troy Polamalu hasn't been ruled out of Sunday's game at Kansas City despite injuring his left knee for the second time this season, though coach Mike Tomlin says he is questionable at best.

Polamalu, a five-time Pro Bowl player, missed four games earlier this season with a medial collateral ligament tear. He strained the posterior cruciate ligament while tackling running back Cedric Benson on Cincinnati's first possession Sunday and did not return.