Washington Redskins tight end Jordan Reed has been ruled out of Sunday's game at Arizona, coach Jay Gruden said Friday after a third consecutive day of practice in which the team's leading receiver was unable to participate. Reed wore his No. 86 jersey but watched from a chair as the Redskins (6-4-1) practiced one final time in Ashburn, Va., before boarding an afternoon flight to Arizona, where they'll face the 4-6-1 Cardinals on Sunday. Reed, who leads the Redskins with 59 catches, suffered a Grade 3 separation of the AC joint in left shoulder during the second quarter of the Thanksgiving Day loss at Dallas. In other news, the Redskins promoted Dashaun Phillips to the 53-man roster to provide depth at nickel back. They cut backup tackle Blaine Clausell and waived safety David Bruton Jr., who had been on injured reserve after an early-season concussion.