The Dallas Stars will be without defenseman John Klingberg for at least the next three weeks after he suffered an upper-body injury, according to NHL.com's Mark Stepneski.

Klingberg was on the ice for nearly 21 minutes against the San Jose Sharks on Thursday, but he seemingly played through the ailment.

It's a major loss for the Stars because of Klingberg's ability to generate offense from the back end. In 16 appearances this season, Klingberg has registered five goals and eight assists. He finished second among defensemen in scoring last season with 67 points, one shy of Washington's John Carlson.

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