Nfl

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Washington Redskins head coach Jay Gruden gives his quarterback Robert Griffin III, center, the next passing play during their NFL organized team activity at the Redskins training facility Thursday, May 29, 2014, in Ashburn, Va. (AP Photo/Richard Lipski)

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Washington Redskins wide receiver DeSean Jackson, reaches for a pass from Robert Griffin III during their NFL organized team activity at Redskins training facility, Thursday, May 29, 2014, in Ashburn, Va. (AP Photo/Richard Lipski)

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Washington Redskins wide receiver DeSean Jackson looks toward quarterback Robert Griffin III during their NFL organized team activity at the Redskins training facility Thursday, May 29, 2014, in Ashburn, Va. (AP Photo/Richard Lipski)

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Denver Broncos quarterback Peyton Manning talks to the media following an NFL football organized team activity, Wednesday, May 28, 2014, in Englewood, Colo. (AP Photo/Jack Dempsey)

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Denver Broncos quarterback Peyton Manning talks to the media following an NFL football organized team activity, Wednesday, May 28, 2014, in Englewood, Colo. (AP Photo/Jack Dempsey)

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Denver Broncos quarterback Peyton Manning stretches during an NFL football organized team activity, Wednesday, May 28, 2014, in Englewood, Colo., (AP Photo/Jack Dempsey)

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San Francisco 49ers' Shayne Skov makes a catch during an NFL football organized team activity, Wednesday, May 28, 2014, in Santa Clara, Calif. (AP Photo/Marcio Jose Sanchez)

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San Francisco 49ers' Jimmie Ward jogs during an NFL football organized team activity Wednesday, May 28, 2014, in Santa Clara, Calif. (AP Photo/Marcio Jose Sanchez)