The Chargers signed O-linemen Colin Baxter and Stephen Schilling and placed WR Seyi Ajirotutu and C David Molk on injured reserve.
Baxter played in five games for the Chargers last season. He began the 2011 campaign with the Jets and played in three games and two starts.
Schilling played in nine games with two starts last season for San Diego. Baxter and Schilling bring the Chargers much needed depth on the O-line, as they are expected to be without OTs Mike Harris and Jeromey Clary and OG Tyronne Green for Week 14.
Ajirotutu had three catches for 45 yards in three games with the Chargers this season. Molk, a rookie, appeared in all 12 games as a reserve.