The heartbreaking news that Edwin Diaz won’t be dealt was released by Mets owner Steve Cohen.
NEW YORK — Mets owner Steven Cohen threatened his underperforming team with the prospect of a trade deadline selloff unless New York gets back into contention for a playoff berth while promising job security through the season’s end to manager Buck Showalter and general manager Billy Eppler. “All is not lost yet, but it’s getting…