But this season, DC and Philly have more important things to worry about than each other, as both teams are struggling.
Through Tuesday's games, the Philadelphia Flyers were 10th in the Eastern Conference standings with 19 of a possible 42 points. Meanwhile, the Washington Capitals were 14th of 15 teams in the East, with 15 of a possible 36 points. If the Stanley Cup playoffs began today, both of these rivals would miss the postseason party.
So why are these two teams struggling?
Here is a breakdown of the struggles that the Washington Capitals and Philadelphia Flyers are facing. This analysis will cover five different aspects of the game, with which both teams may in fact struggle.