Mets vs Yankees: a Sports Rivalry
In the Yankees-Red Sox Rivalry, History's Echoes Are Everywhere - The New York Times
What are the Yankees' and Mets' most memorable Subway Series moments? - Pinstripe Alley
Yankees–Red Sox rivalry - Wikipedia
New York Mets - Wikipedia
Mets–Yankees rivalry - Wikipedia
Braves–Mets rivalry - Wikipedia
New York Yankees - Wikipedia
Mets–Yankees rivalry - Wikipedia
New York Yankees - Wikipedia
Mets–Yankees rivalry - Wikipedia
Yankees–Red Sox rivalry - Wikipedia
John Breunig (opinion): I root for the Yankees. Here's how I stayed friends with a Red Sox fan.
Yankees vs. Astros: Upcoming Game Info & Rivalry History - Ticketmaster Blog