Edwin Diaz and Pete Alonso are officially free agents.

The Mets star closer and homegrown first baseman opted out of their contracts Monday afternoon, sources confirmed to the Daily News, giving the club some work to do as the offseason officially begins.

The end of the World Series marks the start of free agency and the hot stove period. Teams typically use this early period in winter to lay the framework for their offseason. The Mets have already had a month to assess the damage from a spectacular failure of a season. They’ve made some key hires to restructure Carlos Mendoza’s coaching staff, but still have to hire a pitching coach.

They’ve keyed in Justin Willard, the director of pitching for the Boston Red Sox, sources confirmed to The News over the weekend.

Here’s what to know

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