Washington suffered a sprained foot and ankle during Sunday's loss to the Bears, the Detroit Free Press reports.
Washington's ailments add to the Lions' bad luck at running back, where Ameer Abdullah (foot) has already been placed on injured reserve. That being said, despite having foot and ankle sprains, Washington may still have a shot to play this Sunday against the Eagles. While his practice level throughout the week should help determine whether that's possible or not, Zach Zenner and Michael Burton may be poised for expanded snap counts behind Theo Riddick even if Washington is cleared.