FILE - In this Nov. 18, 2012, file photo, Baltimore Ravens free safety Ed Reed runs after recovering a fumble by Pittsburgh Steelers wide receiver Mike Wallace during the first quarter

 

              FILE - In this Nov. 18, 2012, file photo, Baltimore Ravens free safety Ed Reed runs after recovering a fumble by Pittsburgh Steelers wide receiver Mike Wallace during the first quarter
FILE - In this Nov. 18, 2012, file photo, Baltimore Ravens free safety Ed Reed runs after recovering a fumble by Pittsburgh Steelers wide receiver Mike Wallace during the first quarter of an NFL football game in Pittsburgh. Matt Birk dragged his bulky knees and aching body back to play another season for one reason: to get to the Super Bowl. At long last, Birk, Reed and several other veterans on the Ravens get the chance to play in football's biggest game. (AP Photo/Gene J. Puskar, File)