FILE - In this Monday, Dec. 26, 2016 file photo, Dallas Cowboys' Randy Gregory participates in warm ups before an NFL football game against the Detroit Lions in Arlington, Texas. Dallas Cowboys defensive end Randy Gregory has been suspended for at least a year for another violation of the NFL’s substance-abuse policy. The suspension announced Thursday, Jan. 5, 2017 makes him ineligible for the playoffs, which start Jan. 15 for Dallas, the top seed in the NFC.(AP Photo/Brandon Wade, File)