Dec 16, 2013, 9:37 PM EST
Backes struggled on his way back to the bench and to the dressing room after a collision with Ottawa Senators forward Colin Greening in the second period.
In 31 games with the Blues this season, Backes has 16 goals and 30 points prior to Monday’s game.
Updated: As per Jeremy Rutherford of the St. Louis Post-Dispatch, Blues’ head coach Ken Hitchcock said Backes is “day to day” but did not disclose what type of injury it was.
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