Mets Acquire Closer A.J. Ramos From Marlins, Capping a Busy Day

A.J. Ramos, an All-Star last season, with the Marlins during a game on July 21.SEATTLE — A day after the Mets traded one infielder to begin their roster retooling, they welcomed back one and lost yet another to injury. And then, as they played the Seattle Mariners on Friday night, the Mets traded for a major league reliever.

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Infielder T. J. Rivera was placed on the disabled list with a partial torn ulnar collateral ligament in his throwing elbow, and second baseman Neil Walker returned after six weeks away with a partially torn left hamstring.

But the most intriguing roster move came later when the Mets picked up Miami Marlins closer A. J. Ramos in exchange for two prospects:…