THE Yankees are good against any team except?

The Red Sox? Has anyone noticed this? They can beat the crap out of other teams and their pitching, but once it comes to the Red Sox, who they are 1-8 against, they have been crushed by them! The Red Sox don't even have the best pitching and they still hold the Yanks down! and their offense explodes against their pretty decent pitching, they even mashed CC! The Yanks have been killing other teams but Boston! Why is this, or is it simply that the Sox have their number?