Ford suffered a concussion during practice Sunday, Kelsey Conway of The Cincinnati Enquirer reports.
Ford signed with the Bengals on Thursday, Jeremy Fowler of ESPN.com reports.
Ford (ankle) was activated from IR on Thursday, Darren Urban of the Cardinals' official site reports.
Arizona designated Ford (ankle) to return from its injured reserve list Tuesday.
The Cardinals placed Ford (ankle) on injured reserve Saturday, Josh Weinfuss of ESPN.com reports.
Ford (ankle) will not play in Sunday's season opening matchup with the Chiefs, Darren Urban of the Cardinals' official site reports.
Ford was traded from the Bills to the Cardinals on Monday in exchange for a 2023 fifth-round pick, Howard Balzer of Sports Illustrated reports.
Ford (undisclosed) was activated from the reserve/COVID-19 list Thursday.