It's intended to be a comic commercial about the Yankees-Red Sox rivalry. Until Alec Baldwin takes a gratuitous southern detour to dump on Philadelphia.
In the ad for sportswear maker New Era that will roll out this week (see video below), Yankee fan Alec Baldwin ('30 Rock') is talking trash with Red Sox fan John Krasinski ('The Office').
Krasinski asks if Baldwin is now a Phillies fan since Cliff Lee spurned New York for the City of Brotherly Love.
Baldwin responds condescendingly, "You know Yankee fans don't consider Philadelphia to be a legitimate sports town."
Them's fighting words. You're lucky the Phillies aren't scheduled to face the Yankees in interleague play this season. We would give you such a beating like you've never had!