Transactions
Detroit Red Wings
Agreed to terms with F Darren Helm on a four-year contract.
Minnesota Wild
Re-signed G Josh Harding to a three-year contract.
Nashville Predators
Named Dean Evason coach of Milwaukee (AHL).
Edmonton Oilers
Signed LW Lennart Petrell to a one-year contract extension.
Ottawa Senators
Agreed to terms with D Erik Karlsson on a seven-year contract extension.
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