Grace expects Greinke trade to have emotional impact The Arizona Cardinals announced they have signed running back Robert Hughes to the practice squad. Hughes signed with the Chicago Bears as an undrafted free agent out of Notre Dame in 2011, played in six games over the past two seasons with the Indianapolis Colts. He had one carry for five yards and two catches for nine yards. After being released by the team following training camp, he re-signed with the club and played in one game before heading back to the practice squad. The Colts released him on Dec. 17. In a corresponding move, the Cardinals released linebacker JoJo Dickson.