Williams (ankle) will remain on injured reserve and has been ruled out for Sunday's game against the Buccaneers, Tori McElhany of the Falcons' official site reports.
Williams has been sidelined the entire regular season due to an ankle injury that he picked up in early September. He logged a trio of full practices during Week 8 prep, but he's not quite ready to return from IR, so his next opportunity to play is Week 9 against the Bengals on Sunday, Nov. 8.