If the Mets win the World Series this season, do not expect Tom Glavine to return next year. In a lengthy interview with reporters before the opener of a three-game series between the Mets and the Florida Marlins last night, Glavine said he would be more inclined to return for a 21st season if the Mets? year ended without a championship. ?If we were to win a World Series, I would say, ?Now it?s really hard for me to say, You know what, man, I want to play again next year,? ? Glavine said while standing in front of his locker. ?Because now you?re walking out on top of the world. But if we had a disappointing ending like we had last year, then I think there?s a sense of unfinished business and that bad taste in your mouth that you want to have go away.?