The San Diego Chargers placed defensive end Vaughn Martin and safety Darrell Stuckey on injured reserve Wednesday.
Martin has collected 19 tackles and a sack over 12 games for the Chargers this season before suffering a right groin injury.
The four-year veteran has 78 tackles and three sacks over 48 career games for San Diego.
Stuckey, who is San Diego's special teams captain, has 12 tackles in 12 games this season, and 24 stops through 26 contests over the last two campaigns.
He is sidelined with a right hamstring injury.
The Chargers also signed linebacker Gary Guyton and running back Curtis Brinkley to the active roster, re-signed defensive end Logan Harrell to the practice squad and waived wide receiver Kashif Moore.