NFL 2013 Preseason (25 images)

A round up of Preseason action ahead of the 2013 NFL season.
Updated: Aug. 19, 2013 at 11:57 PM
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Dallas Cowboys fans wear horse masks during the Cowboys- Arizona Cardinals preseason game at University of Phoenix Stadium in Glendale, Arizona on August 17, 2013. The Cardinals defeated the Cowboys 12-7. UPI/Art Foxall
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