High Quality Content by WIKIPEDIA articles! The New York Yankees New York Mets rivalry is the latest incarnation of the Subway Series, the competition between New York City's Major League Baseball teams, the American League New York Yankees and the National League New York Mets. Until Interleague play started, the two teams had only met in exhibition games. Since the inception of interleague play the teams have met in every season since 1997 and faced off in the 2000 World Series, which the Yankees won in 5 games. With the departure of the New York Giants to San Francisco and the Brooklyn Dodgers to Los Angeles in 1958, the Yankees were New York City's only Major League Baseball team until 1962, when the expansion Mets joined the National League. The Mets sought to create a fan base from fans of the departed teams. The Mets hired former Yankee legend Casey Stengel as their first manager. Both teams shared Shea Stadium as their home field when Yankee Stadium was being refit duringthe 1974 and 1975 seasons.