Dallas Cowboys rookie running back Jordan Chunn carries the ball during a NFL football mini camp at the team's training facility in Frisco, Texas, Friday, May 10, 2019. (AP Photo/Tony Gutierrez Stock
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Dallas Cowboys rookie running back Julius Jones runs through a workout machine during morning drills at training camp, Wednesday, Aug. 4, 2004, in Oxnard, Calif. (AP Photo/Tony Gutierrez Stock Photo - Alamy
Dallas Cowboys running back Tony Pollard participates in drills at the team's NFL football training facility in Frisco, Texas, Wednesday, June 12, 2019. ( AP Photo/Tony Gutierrez Stock Photo - Alamy
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Dallas Cowboys rookie running back Jordan Chunn (46) participates in drills during a NFL football mini camp at the team's training facility in Frisco, Texas, Friday, May 10, 2019. (AP Photo/Tony Gutierrez
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Dallas Cowboys rookie running back Jordan Chunn (46) participates in drills during a NFL football mini camp at the team's training facility in Frisco, Texas, Friday, May 10, 2019. (AP Photo/Tony Gutierrez
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