The baseball hot stove is burning with an unusual trend this winter: the steady migration of former Yankees across town to the Mets. With Luke Weaver’s recent signing of a two-year, $22 million contract with the Amazins, the pattern has become impossible to ignore — and it’s raising eyebrows throughout New York.

The New York Mets have city bragging rights, at least when it comes to one of the highest-regarded international prospects available in the upcoming international signing period.

Luke Weaver became the latest ex-Yankee to be acquired by the Mets, continuing a trend that has ramped up over the past three offseasons under president of baseball operations David Stearns.

Wandy Asigen, a 16-year-old prospect, has opted out of his contract with the Yankees, an industry source confirmed Thursday, and agreed to sign with the Mets for $3.8 million. The international signing period begins on Jan. 15.

The Mets are reportedly signing a shortstop who planned to to sign with the Yankees until they fired a key executive in November.

Weaver and/or Devin Williams will be tasked with closing games for the Mets next season in the absence of Edwin Diaz.

After letting Pete Alonso walk in free agency last week, the Mets are eyeing the best hitters remaining on the open market. They’ve been linked to outfielders Cody Bellinger and Kyle Tucker, along with other high-spending contenders like the Yankees, Dodgers and Blue Jays, all offseason long.