The Bears also added defensive tackle Roy Philo to the practice squad

A third-year veteran, Frey spent the 2013 season, leading the team nickel corner. But he struggled throughout the season due to a broken hand and could not force a single turnover. Frey started six games, producing 62 tackles and two pass breakups in addition to generating five quarterback pressures.

Frey spent his rookie season (2012) and the first two weeks of this season on the practice squad. It is not known if the Bears plan to make the starter Frey Nickel confrontation Monday night against the New York Jets, and it is likely that the club continues to explore options in the position.

Due to the injury of Tillman, the Bears rookie Kyle Fuller moved into the starting lineup to play alongside Tim Jennings. Still, the club are looking for a proven player taking snaps of the slot corner position, such as bears spend about 50 percent of the runtime packages substitution.

Ross, meanwhile, spent most of last season on the practice squads of the Tennessee Titans and Kansas City Chiefs after the first signed him as a free agent undrafted Arizona State.

Ross played in 26 games in the state of Arizona with 14 starts and caught 55 passes for 864 yards and seven touchdowns, while also contributing as a return man (779 yards and two touchdowns).