Ristolainen (undisclosed) missed the third period of Philadelphia's 2-0 loss to Colorado, per Charlie O'Connor of PHLY Sports.

EDGE Analysis

Ristolainen was dealing with soreness before the game, but it's not clear if that's the cause of his exit from Sunday's clash. He had two goals, 15 points, 12 PIM, 83 hits and 84 blocks in 53 appearances with the Flyers before the loss to the Avalanche. If he isn't available for Tuesday's game against Utah, then the Flyers might shift to dressing six defensemen after utilizing seven Sunday.