The New York Yankees are a very famous Major League Baseball team. George Costanza worked as the Assistant to the Traveling Secretary for the New York Yankees from the end of Season Five in the episode "The Opposite," when he gets the job by criticizing George Steinbrenner, until the middle of Season Eight in the episode, "The Muffin Tops," where he's let go because he's thought to be moonlighting for Tyler Chicken, and "traded" for a chicken contract in concessions. He frequently met with George Steinbrenner, Mr. Wilhelm, Mr. Morgan, and once even Fidel Castro; both Steinbrenner and Castro were voiced by Larry David. At least at the beginning of the series, Jerry was a Mets fan. George is eventually fired, and Steinbrenner makes a brief appearance in “The Finale,” testifying that he thinks George is a Communist.