Thompson (neck) was placed on injured reserve Wednesday.
Thompson (neck) will not play in Saturday's matchup against the Ravens, Teresa Varley of the Steelers' official website reports.
Thompson (neck) is listed as questionable for Saturday's game at Baltimore, Brooke Pryor of ESPN.com reports.
Thompson (neck) was listed as a limited participant on the Steelers' practice estimate Tuesday, Brooke Pryor of ESPN.com reports.
Thompson (neck) is listed as out for Saturday's game versus the Bengals, Brooke Pryor of ESPN.com reports.
Thompson (neck) was listed as did not participate on Tuesday's injury report, Teresa Varley of the Steelers' official site reports.
Thompson (stinger) departed Saturday's contest against Indianapolis and is questionable to return, Brooke Pryor of ESPN.com reports.
Thompson was signed to the 53-man roster from the practice squad Monday, Teresa Varley of the Steelers' official site reports.