We use up our remaining MTA MetroCard credit this week for a sit-down with baseball author/historian Chris Donnelly — whose new book "Get Your Tokens Ready: The Late 1990s Road to the Subway Series" represents the final installment of his intriguing trilogy charting the divergent, yet intertwined sagas of the Mets and Yankees from the mid-1980s through 2000's historic "Subway Series."

Donnelly's previous works — "Doc, Donnie, the Kid, and Billy Brawl: How the 1985 Mets and Yankees Fought for New York's Baseball Soul" and "Road to Nowhere: The Early 1990s Collapse and Rebuild of New York City Baseball" — set the stage.  

But now, with "Tokens," he delivers the most in-depth look ever at how the late-1990s Yankees rose to dynasty status while the Mets clawed their way back from irrelevance — culminating in a tightly contested World Series showdown that defined a generation of New York baseball fans.

We explore how the Yankees became the undisputed kings of New York, the Mets' dramatic resurgence, and what the 2000 cross-town showdown meant for the city's baseball soul -- some four decades after the Giants and Dodgers abandoned Gotham for the California coast.