Ristolainen (undisclosed) is not expected to play in Tampa Bay on Monday, per Jackie Spiegel of The Philadelphia Inquirer.
Ristolainen was not on the ice pregame warmups, so it's safe to assume he won't be in Monday's lineup after being deemed a game-time call earlier in the day. Once the right-shot blueliner moves past his injury, Simon Benoit or David Jiricek will likely come out of the lineup. Philadelphia will continue its road trip in Ottawa on Thursday.