Super Bowl XLVII - Baltimore Ravens v San Francisco 49ers

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Quarterback Joe Flacco of the Baltimore Ravens calls signals out in... News PhotoAmerican Football - Sport,Baltimore Ravens,Full Length,Gulf Coast States,Horizontal,Joe Flacco,Louisiana Superdome,NFL,New Orleans,Quarterback,San Francisco 49ers,Shotgun,Sport,Stadium,Super Bowl,Super Bowl XLVII,USAPhotographer Collection: Getty Images Sport 2013 Getty ImagesNEW ORLEANS, LA - FEBRUARY 03: Quarterback Joe Flacco #5 of the Baltimore Ravens calls signals out in the shotgun formation in the first quarter against the San Francisco 49ers during Super Bowl XLVII at the Mercedes-Benz Superdome on February 3, 2013 in New Orleans, Louisiana. (Photo by Christian Petersen/Getty Images)