NFC East rivalries run deep, especially up in the northeast. The Philadelphia Eagles and New York Giants are not too far apart from each other and fans of the respective clubs could be neighbors. Even Nick Sirianni has to hear from Giants fans every once in a while in Philadelphia. Usually, Sirianni lets people say their piece, maybe get a shot in, and he moves on with his day. Nothing too serious, just a fun aspect of having a rival in such a close proximity — especially New York and Philadelphia. However, he recently found a new way to clap back at them after the Eagles signedSaquon Barkley …