The Mets are hoping a Mariners postseason hero can bring his winning ways to Flushing and potentially fill some of the void left by Pete Alonso’s departure.

The Mets reached agreement with infielder Jorge Polanco on a two-year, $40 million contract, pending a physical, sources said Saturday.

Polanco primarily served as a designated hitter last season and has spent the majority of his career as a middle infielder, but reports said the Mets are interested in converting him to a first baseman. Polanco, who played his only career game at first base last season, also will DH.

Asked during the winter meetings this past week if he was searching for a set DH, president of baseball operations David Stearns said he wanted to remain flexible.

“I think at a certain level, you’re OK with having o

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