Pittsburgh Steelers strong safety Troy Polamalu, 43, waves as he is introduced 

Pittsburgh Steelers strong safety Troy Polamalu, 43, waves as he is introduced on stage during an NFL fan rally event in Regent Street, London, Saturday, Sept. 28, 2013.  The Minnesota Vikings are to play the Pittsburgh Steelers at Wembley stadium in London on Sunday, Sept. 29 in a regular season NFL game
AP - Sports
Pittsburgh Steelers strong safety Troy Polamalu, 43, waves as he is introduced on stage during an NFL fan rally event in Regent Street, London, Saturday, Sept. 28, 2013. The Minnesota Vikings are to play the Pittsburgh Steelers at Wembley stadium in London on Sunday, Sept. 29 in a regular season NFL game. (AP Photo/Matt Dunham)
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