The New York Yankees and Boston Red Sox will kick off a four-game series in the Bronx on Thursday night that will have huge AL East implications.
The two teams are both competing for playoff spots and seeding, not to mention the pride that comes with winning baseball's biggest rivalry.
The Yankees are looking to make a huge comeback and steal a wild-card spot, whereas the Red Sox are trying to hold off the Detroit Tigers for home-field advantage and ruin their rivals' season at the same time.
Just how much does this series mean? Let's take a look at how each possible outcome could affect each team's season.