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SEATTLE, WA - AUGUST 25: Quarterback Dak Prescott #4 of the Dallas Cowboys passes against the Seattle Seahawks during the preseason game at CenturyLink Field on August 25, 2016 in Seattle, Washington. (Photo by Otto Greule Jr/Getty Images)

SEATTLE, WA - AUGUST 25:  Quarterback Dak Prescott #4 of the Dallas Cowboys passes against the Seattle Seahawks during the preseason game at CenturyLink Field on August 25, 2016 in Seattle, Washington.  (Photo by Otto Greule Jr/Getty Images)

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STARKVILLE MS -OCTOBER 17: Quarterback Dak Prescott #15 of the Mississippi State Bulldogs throws a pass during the second quarter of an NCAA college football game against the Louisiana Tech Bulldogs at Davis Wade Stadium on October 17, 2015 in Starkville, Mississippi. (Photo by Butch Dill/Getty Images)

STARKVILLE MS -OCTOBER 17:  Quarterback Dak Prescott #15 of the Mississippi State Bulldogs throws a pass during the second quarter of an NCAA college football game against the Louisiana Tech Bulldogs at Davis Wade Stadium on October 17, 2015 in Starkville, Mississippi. (Photo by Butch Dill/Getty Images)

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INDIANAPOLIS, IN - FEBRUARY 27: Quarterback Dak Prescott of Mississippi State throws during the 2016 NFL Scouting Combine at Lucas Oil Stadium on February 27, 2016 in Indianapolis, Indiana. (Photo by Joe Robbins/Getty Images)

INDIANAPOLIS, IN - FEBRUARY 27: Quarterback Dak Prescott of Mississippi State throws during the 2016 NFL Scouting Combine at Lucas Oil Stadium on February 27, 2016 in Indianapolis, Indiana. (Photo by Joe Robbins/Getty Images)

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ARLINGTON, TX - AUGUST 19: Dak Prescott #4 of the Dallas Cowboys during a preseason game against the Miami Dolphins at AT&T Stadium on August 19, 2016 in Arlington, Texas. (Photo by Ronald Martinez/Getty Images)

ARLINGTON, TX - AUGUST 19:  Dak Prescott #4 of the Dallas Cowboys during a preseason game against the Miami Dolphins at AT&T Stadium on August 19, 2016 in Arlington, Texas.  (Photo by Ronald Martinez/Getty Images)

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ARLINGTON, TX - AUGUST 19: Dak Prescott #4 of the Dallas Cowboys during a preseason game against the Miami Dolphins at AT&T Stadium on August 19, 2016 in Arlington, Texas. (Photo by Ronald Martinez/Getty Images)

ARLINGTON, TX - AUGUST 19:  Dak Prescott #4 of the Dallas Cowboys during a preseason game against the Miami Dolphins at AT&T Stadium on August 19, 2016 in Arlington, Texas.  (Photo by Ronald Martinez/Getty Images)