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Gary Horton picks 48 playoff 'X factors' -- four guys per team -- who, while not household names, could swing the balance of the AFC and NFC playoffs. You'll find names like Roman Harper, John Kuhn, Raheem Brock and Danny Woodhead here.

Story | Conversation | January 04, 2011

After watching a lot of film on both the Steelers and Eagles, Gary Horton picks out some key points to watch in Friday night's game.