The St. Louis Blues placed forward Alexander Steen on injured reserve Sunday.
Steen sustained an upper-body injury in the first period of a 6-4 win against the Arizona Coyotes on Saturday when he was hit hard into the boards by Kevin Connauton. Steen left the game and did not return.
General manager Doug Armstrong said Steen will be re-evaluated in four weeks.
Steen has 17 goals and 47 points in 64 games this season.