- John Clayton, NFL senior writer
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Polamalu was limited in practice and could still be a gametime decision on whether he will play against the Detroit Lions.
Running back Willie Parker sat out his second consecutive day of practice Thursday because of a toe injury and appears to be heading toward resting a second consecutive week. Rashard Mendenhall took the first-team snaps with the Steelers' offense Thursday.
John Clayton is a senior NFL writer for ESPN.com
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