Levi Brown’s season in Pittsburgh was a short one. Brown the offensive tackle obtained in a trade with the Cardinals on October 2 has been placed on injured reserve without playing a single game for the Steelers. The Steelers expected Brown to play on Sunday but he suffered a triceps injury in pregame warmups and that injury has now ended his season. Pittsburgh also placed tight end/fullback David Johnson on injured reserve signed free agent tight end Richard Gordon and promoted cornerback Isaiah Green from the practice squad to the 53-man roster