Foerster is questionable for Monday's game against Colorado due to a hand injury, per Jordan Hall of NBC Sports Philadelphia.
Foerster sustained the injury when he blocked a shot during Saturday's 3-1 win over Ottawa. He was able to complete that game, but he then missed Sunday's practice. The status of Sean Couturier (undisclosed) and Owen Tippett (upper body) is also unclear heading into Monday's action, so Philadelphia might need to call up at least one forward from the minors.