The Washington Redskins placed center Kory Lichtensteiger on injured reserve/designated to return Monday, the team announced.
Lichtensteiger, who's already missed the past three games with a neck injury, now won't be eligible to return until Week 17.
In a corresponding roster move, Washington signed veteran center Brian de la Puente, providing some much-needed depth.
The seven-year veteran started six games with the Chicago Bears in 2014 and 44 games with the New Orleans Saints across the three seasons prior.
