Baltimore Ravens head coach Harbaugh looks on during the NFL's Super Bowl XLVII football practice in...
Baltimore Ravens head coach John Harbaugh (C) looks on during the NFL's Super Bowl XLVII football practice in Metairie, Louisiana February 1, 2013. Super Bowl XLVII will be played between the San Francisco 49ers and the Baltimore Ravens on Sunday in New Orleans, Louisiana. REUTERS/Sean Gardner (UNITED STATES - Tags: SPORT FOOTBALL)