The Panthers have activated DB Brandon Hogan from the physically-unable-to-perform list and signed DE Thomas Keiser from their practice squad, the result of two transactions made earlier Tuesday.
LB Thomas Williams, who started two games this season, was placed on injured reserve because of a neck injury. He is the third Panthers linebacker to go on I.R. this season. The team also released DT Ron Fields.
Rookie LB Lawrence Wilson, who was arrested last week on drug charges, was released from the Carolina practice squad. DT Jason Shirley and LB Phillip Dillard were signed to the practice squad as replacements for Keiser and Wilson.