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FILE - In this Monday, May 20, 2013, file photo, Denver Broncos running back Ronnie Hillman jokes with teammates as they leave the field after NFL football practice at the team's headquarters in Englewood, Colo. (AP Photo/David Zalubowski, File)
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FILE - In this Monday, May 20, 2013, file photo, Denver Broncos running back Ronnie Hillman jokes with teammates as they leave the field after NFL football practice at the team's headquarters in Englewood, Colo. (AP Photo/David Zalubowski, File)
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FILE - In this Oct. 16, 1966, file photo, Chicago Bears tight end Mike Ditka (89) is tackled after a pass reception against the Green Bay Packers during an NFL football game at Wrigley Field in Chicago. The Bears announced Friday, May 24, 2013, that they will retire Ditka's No. 89 during halftime of the Dec. 9, 2013, Monday Night Football game against the Dallas Cowboys at Soldier Field in Chicago. (AP Photo/File)
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Dallas Cowboys nose tackle Josh Brent leaves court Tuesday, Dec. 18, 2012 in Dallas. A judge ordered Brent to wear an electronic monitor pending his trial on an intoxication manslaughter charge in the one-car crash that killed a teammate. (AP Photo/Michael Mulvey)
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Dallas Cowboys nose tackle Josh Brent leaves court Tuesday, Dec. 18, 2012 in Dallas. A judge ordered Brent to wear an electronic monitor pending his trial on an intoxication manslaughter charge in the one-car crash that killed a teammate. (AP Photo/Michael Mulvey)
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New Orleans Saints defensive coordinator Rob Ryan talks to reporters after practice at their NFL football training facility in Metairie, La., Thursday, May 23, 2013. (AP Photo/Gerald Herbert)
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New Orleans Saints defensive coordinator Rob Ryan greets linebacker Victor Butler as he walks of the field after practice at their NFL football training facility in Metairie, La., Thursday, May 23, 2013. (AP Photo/Gerald Herbert)
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New Orleans Saints defensive coordinator Rob Ryan throws a football during practice at their NFL football training facility in Metairie, La., Thursday, May 23, 2013. (AP Photo/Gerald Herbert)