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Chicago, IL (SportsNetwork.com) - Chicago Blackhawks defenseman Michael Kostka will miss 4-to-6 weeks of action due to a lower-body injury.

The 27-year-old Kostka suffered the injury during Tuesday's practice. He won't need surgery.

Kostka has one goal in two games this season. He had eight assists in 35 games with the Maple Leafs last season.