Niskanen (lower body) is day-to-day after leaving Saturday's game, Isabelle Khurshudyan of the Washington Post reports.

The defenseman didn't practice on Monday, so it seems like the injury is pretty serious, and his status for Thursday's game is in doubt. That said, if he practices on either Tuesday or Wednesday, it'll make his status a little more certain. Owners should keep their eyes peeled for more information as game time approaches.

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