Williams signed to the active roster from the practice squad Tuesday.
The Cardinals released Williams on Monday, Tom Pelissero of NFL Network reports.
Williams (undisclosed) has been activated off the non-football injury list, Darren Urban of the Cardinals' official site reports.
Williams (undisclosed) was placed on the non-football injury list Tuesday, Josh Weinfuss of ESPN.com reports.
Arizona signed Williams to a one-year contract Monday.
Williams' suspension was lifted by the NFL on Monday, Aaron Wilson of the Houston Chronicle reports.
Williams has been suspended one game for violation of the NFL's unnecessary roughness and unsportsmanlike conduct rules, Ian Rapoport of NFL Network reports.
Williams recorded one solo tackle in Sunday's 19-7 loss to the Dolphins.
Williams (hamstring) is active for Sunday's game versus the Browns, Marisa Contipelli of the Bengals' official site reports.
Williams (hamstring) is listed as questionable for Sunday's game against the Browns, but he's expected to be available, Ben Baby of ESPN.com reports.