A key player in the Columbus organization has reportedly declined to extend his contract, ending speculation about a long-term future with the team. Sources suggest the athlete, who had restricted free agency rights this season, will not sign a new deal, leaving his next move uncertain. The decision comes after agent Dan Milstein signaled in June that a contract extension was unlikely. With no commitment made, the player’s future—whether as a free agent or a trade target—remains open.

Agent Dan Milstein indicated in June that Marchenko, who could have become a restricted free agent after this season, would not sign a new deal with Columbus. On Sept. 18, Marchenko would not commit ...