Most rivalries have a few common ingredients. Proximity is one, although it isn't mandatory. Games involving the highest of stakes are another, but those can come and go. Time, however, is usually non-negotiable. Most derbies start from nothing, and with each passing match, a few more doses of color and venom are added.
Yet El Trafico, the nascent derby between the LA Galaxy and LAFC, is bending -- if not outright breaking -- the rules of what constitutes a rivalry. The two sides have met just twice so far, but what games they have been. There was the inaugural clash back on March 31, when Zlatan Ibrahimovic's two goals in his MLS debut capped a stunning comeback from three goals down to give the Galaxy a 4-3 win.