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San Diego Chargers v Arizona Cardinals

GLENDALE, AZ - AUGUST 24: Running back Ryan Mathews #24 of the San Diego Chargers celebrates after scoring a 1 yard rushing touchdown against the Arizona Cardinals during the first quarter of the preseason NFL game at the University of Phoenix Stadium on August 24, 2013 in Glendale, Arizona. (Photo by Christian Petersen/Getty Images)

Best of NFL preseason: Week three

As we come down the homestretch of preseason football, we enter week three. This is when the last of the position battles get really heated as players fight for their spots. Take a look at all of the best images from week three.

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