NHL deputy commissioner Bill Daly said in an e-mail Saturday that the league has opposed the forward's signing with Dynamo Moscow, officially communicating its concerns to the International Ice Hockey Federation and the Continental Hockey League.
The NHL believes Hudler should remain property of the Red Wings because he filed for NHL salary arbitration July 5 -- before signing with the Russian club this past week.
Once a player has filed for salary arbitration in the NHL, he is awarded either a one-year or two-year contract. So the league believes the moment Hudler filed for arbitration, he obligated himself contractually to the NHL for next season.
The KHL and NHL have for the most part tried to respect players who are contractually obligated to their respective leagues and not poach them away.
Pierre LeBrun covers the NHL for ESPN.com.