The Steelers activated Elliott (knee) from IR on Saturday ahead of Sunday's game against the Saints.
Elliott started the regular season on injured reserve with a knee injury. The strong safety's 21-day return window opened Oct. 8, and the 29-year-old is finally ready to return to the active roster. Elliott is set to reclaim his starting role in the Steelers' secondary from Robert Spears-Jennings in Sunday's contest against the Saints.