2013 NFL Fans (31 images)

Celebrating the National Football League's most die hard fans.
Updated: Nov. 25, 2013 at 12:38 PM
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Arizona Cardinals fans boo their team in the fourth quarter of the Cardinals-Seattle Seahawks game at University of Phoenix Stadium in Glendale, Arizona on October 17, 2013. The Seahawks defeated the Cardinals 34-22. UPI/Art Foxall
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