In this Aug. 28, 2014, file photo, Denver Broncos wide receiver Wes Welker (83) watches the action from the sideline in the second half of a NFL preseason football game against the Dallas Cowboys in Arlington, Texas. The NFL reached an agreement with the players association on changes to its performance-enhancing drug policy, including the addition of human growth hormone testing, which will allow the Welker and two other previously suspended players to return to their teams this week. Under the new rules announced Wednesday, Sept. 17, 2014, players who test positive for banned stimulants in the offseason will no longer be suspended. Instead, they will be referred to the substance abuse program. (AP Photo/LM Otero, File)
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