The Bruins and Flyers have never played in the same division, but these two teams have an intense rivalry between them that has been built up over the years.
The Bruins are an Original Six team with a strong winning tradition, while the Flyers have been one of the most successful NHL teams since they entered the league with the "Second Six" in 1967.
The rivalry heated up in the 1970s when these two teams were among the best and toughest in hockey. It got more intense again in the last 10 years when, again, these two teams got in each other's way in the playoffs year after year.
Some great names have graced this rivalry, names like Bobby Orr, Bobby Clarke, Bernie Parent, Gerry Cheevers, Phil Esposito, Bill Barber, Eric Lindros, Terry O'Reilly, Dave Schultz and Tim Thomas.
Here is a look back at the greatest moments in the often intense rivalry between the Boston Bruins and the Philadelphia Flyers.