 Furthermore, the much larger geographical footprint of the North American sports leagues mean that even fierce rivals are often based hundreds or even thousands of miles apart.For example, while the Dallas Cowboys are considered to be the bitter rivals of every other team in the NFC East, their nearest division is based almost from the Dallas metropolitan area by air, and over from Dallas by road.Fans elsewhere in the world can easily travel to most if not all of their league's stadiums by road or by train, and bus and rail carriers have evolved there to cater to the expected demand.