The San Francisco 49ers announced on Tuesday that they have placed center on the Injured Reserve List and promoted offensive lineman to the active roster from the team’s practice squad. San Francisco has also signed offensive lineman Mitchell Van Dyk to the team’s practice squad.
Balducci (6-4, 310) originally signed with San Francisco on May 6, 2016 as an undrafted free agent from the University of Oregon. After spending training camp with the team, he was waived on Sept. 3 and signed to the team’s practice squad the following day.
Balducci will wear number 75.
Kilgore (6-3, 308) started in each of the team’s 13 games this season.