Welcome to the first edition of Bleacher Report’s MLB rivalry series.

In the weeks to come, we’ll be highlighting some of the biggest head-to-head rivalries in our national pastime and shining light on the past, present and future of those matchups.

We’re kicking things off with the big one—the Boston Red Sox versus New York Yankees in a clash of two of the biggest media markets in the northeastern United States and all of professional sports.

This rivalry goes beyond market size and geography, though.

It’s rooted in the landscape-changing deal that sent Babe Ruth from Boston to New York and has provided us with plenty of memorable moments over the years.

The following provides a look at notable numbers and notes from the rivalry, a detailed breakdown of the rivalry’s origins, an overview of memorable regular-season moments, a rundown of postseason meetings between the two clubs and finally a preview of the future outlook of both franchises.

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