Edwin Díaz is leaving the Mets for the Dodgers. Corey Sipkin for the NY POST

ORLANDO, Fla. — In the annals of terrible, horrible, no good, very bad days, this was right up there in Mets lore.

And I don’t think I need to remind anyone they have a 64-year history of terrible, horrible, no good, very bad days.

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Not only did the Mets lose beloved closer Edwin Díaz (and his musical sidekick Timmy Trumpet), they lost him to the Los Angeles Dodgers , the team they are allegedly chasing in the National League.

Of course, there was already a cavern larger than Chavez Ravine separating the two biggest-market teams —

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