Looking for some help at designated hitter, the Mets called up Álvarez, 20, the top-rated prospect in baseball.
ATLANTA — Ahead of their biggest games of the season, the Mets have called in a new reinforcement. When the Mets (98-58) take on the Atlanta Braves (97-59) during a three-game series that begins on Friday and will essentially decide the winner of the National League East division crown, the Mets will have the top prospect in Major League Baseball at their disposal.