Senators sign defenseman Mike Kostka to 2-way contract

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The Ottawa Senators have added another body to the back end, agreeing on a one-year, two-way contract with Mike Kostka.

He will earn $800,000 at the NHL level, and $300,000 in Binghamton.

Kostka was in the New York Rangers' system last season. He made seven appearances for the big club, and registered one assist.