Carlson (rest) won't play Thursday versus the Penguins, Bailey Johnson of The Washington Post reports.
The Capitals will play with 13 forwards and five defensemen for their regular-season finale. Carlson has rested the last three games, and while there's no glaring concern about the 35-year-old's status, that much rest will at least raise some eyebrows. It's unclear whether his rest will impact his status for Game 1 versus the Canadiens on Monday.