It looks like Jon Bostic will finish a second straight season on IR. The Commanders moved the veteran linebacker to their injured list Friday, sidelining him for four games.

A pectoral injury will sideline Bostic, who has played in all 15 Washington games this season. It is unknown if Bostic suffered a significant pec injury, like he did last season. His previous such issue cost him 13 games in 2021.

This further depletes a Washington linebacking corps that is already without Cole Holcomb, the team’s top tackler last season. The contract-year defender has been out since Week 7 and has undergone foot surgery. Holcomb’s 446 snaps are still the second-most among Washington linebackers, behind only Jamin Davis‘ total. Bostic, who signed a one-year deal for the league minimum to return to D.C., has been on the field for 263 defensive plays this season.

The Commanders have used the 10th-year defender as a part-time starter; Bostic has started in five of the team’s past seven games and has totaled 25 tackles this season. Bostic, 31, has been with the team for the past four seasons. He made his way back to Washington late this summer, after his training camp agreement with the Saints did not lead to a spot on New Orleans’ 53-man roster.

Having seen game action for five teams since being a second-round Bears draftee in 2013, Bostic has made Washington his primary NFL stop. The ex-Florida Gator has started 40 games for Washington over the past four seasons. Washington also signed linebacker De’Jon Harris from its practice squad and signed cornerback Troy Apke to its taxi squad.