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PORTO, PORTUGAL - FEBRUARY 17: Sol Campbell of Arsenal celebrates after he heads his teams first goal of the game during the UEFA Champions League last 16 first leg match between FC Porto and Arsenal at the Estadio Do Dragao on February 17, 2010 in Porto, Portugal. (Photo by Mike Hewitt/Getty Images)

PORTO, PORTUGAL - FEBRUARY 17:  Sol Campbell of Arsenal celebrates after he heads his teams first goal of the game during the UEFA Champions League last 16 first leg match between FC Porto and Arsenal at the Estadio Do Dragao on February 17, 2010 in Porto, Portugal.  (Photo by Mike Hewitt/Getty Images)