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ARLINGTON, TX - AUGUST 19: Jay Ajayi #23 of the Miami Dolphins runs the ball against Jack Crawford #58 of the Dallas Cowboys in the second quarter at AT&T Stadium on August 19, 2016 in Arlington, Texas. (Photo by Ronald Martinez/Getty Images)

ARLINGTON, TX - AUGUST 19:  Jay Ajayi #23 of the Miami Dolphins runs the ball against Jack Crawford #58 of the Dallas Cowboys in the second quarter at AT&T Stadium on August 19, 2016 in Arlington, Texas.  (Photo by Ronald Martinez/Getty Images)