Rosen (undisclosed) has been ruled out for Saturday's game against the Blackhawks, Ken Wiebe of The Winnipeg Free Press reports.
Rosen didn't practice Friday due to an undisclosed injury, and he'll be unavailable for at least one matchup. Nino Niederreiter will take his place in the lineup against Chicago, while Rosen's next opportunity to suit up will be Tuesday against Ottawa, though it isn't yet clear whether he'll be able to do so.