LAS VEGAS -- Starting inside linebacker Troy Andersen, who was battling a left knee injury for most of the season, was placed on injured reserve on Monday by the Falcons. He will miss the rest of the season.

With the roster opening, rookie defensive tackle Ruke Orhorhoro (ankle) was added to the active roster from injured reserve just hours before the Falcons (6-7) are set to face the Raiders (2-11) on Monday Night Football.

Inside linebacker Josh Woods was promoted from the practice squad to the game day roster. Also, kicker Tanner Brown was signed to the practice squad.

Andersen, who was taken in the second-round (58th overall) out of Montana in the 2022 draft, only played two games last season after suffering a pectoral injury. He’s played just seven games this season with four starts.

He flashed his big-play ability with a 47-yard interception return for a touchdown against the Saints on Sept. 29, but has not been able to stay healthy.