NFL Games
NFC Divisional Game: Green Bay Packers at San Francisco 49ers
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In this Friday, Aug. 10, 2012, photo, San Francisco 49ers head coach Jim Harbaugh wears a headset during an NFL football game against the Minnesota Vikings in San Francisco. The NFL is switching from the old analog system coaches used to relay plays to their quarterbacks and launching a network that runs on digital technology. (AP Photo/Paul Sakuma)
