Lovie Smith said that he is thrilled with the free agent class brought in, but that the Bears continue to evaluate players and could well be active in acquiring help for the secondary.

The Chicago Tribune reports that Bears CB Charles Tillman will be out indefinitely because of a back injury.

The Bears are looking for depth in the defensive backfield and have brought in veteran cornerback Ken Lucas for a visit according to the Chicago Sun-Times.

The Bears lost CB Nathan Vasher and TE Desmond Clark to injuries during the second half of Sunday’s win over the Rams.

The Bears took another hit to their already-thin defensive secondary when starting CB Charles Tillman left Sunday’s game late in the first half with an apparent left shoulder injury.