CHICAGO –- Center Daniel Kilgore is set to make his season debut on Sunday against the Chicago Bears.
Kilgore, whom the 49ers activated to the 53-man roster on Saturday, will be in uniform for the first time since sustaining a fractured left lower leg more than a year ago. The 49ers did not announce a change to their starting lineup. Marcus Martin has started the 49ers’ first 11 games of the season.
Linebacker Ray-Ray Armstrong is also active and in uniform for the first time since the 49ers claimed him off waivers from the Oakland Raiders. Armstrong could see action on special teams.