Young and Bailey were held out with groin injuries. Young has only one carry since Oct. 5.
Young's injury left fullback Peyton Hillis as the probable starting running back for the Broncos. Denver also had running back Tatum Bell, who re-signed with the team this week, in uniform.
Kicker Jason Elam, who had been listed as questionable with a hip injury, was in uniform for Atlanta in his first game against his former Denver teammates.
Copyright 2008 by The Associated Press