Defensive tackle Alfonso Boone was released by Kansas City Tuesday but is expected to sign with Carolina today, according to a league source. Boone, a seventh-round pick by Chicago in 2000, was with the Bears until 2006, and spent the last two seasons with the Chiefs. The Panthers have been in contact with Boone since he was released.
The Panthers have been trying to upgrade at defensive tackle since suffering key injuries early in camp. Their run defense sagged as last season went on and Carolina had been scouting several teams and pondering possible trades for linemen as well.