Question: What is the phrase describing this rivalry between two American college football teams that was ranked by ESPN in 2000 as the greatest North American sports rivalry?
Sentence (from "Eagles–Giants rivalry"): The ferocity of the rivalry can also be attributed to the geographic New York-Philadelphia rivalry, which is mirrored in Major League Baseball's Mets–Phillies rivalry and the National Hockey League's Flyers–Rangers rivalry.
Relevant evidence: No