The Superclasico

Superclásico is the name used to describe the football match in Argentina between Buenos Aires rivals Boca Juniors and River Plate. It derives from the Spanish usage of "clásico" to mean derby, with the prefix "super" used as the two clubs are the most popular and successful clubs in Argentine football. According to some statistics, they commandeer more than 70% of all Argentine football fans between them, with Boca claiming 40% and River 32%.
The Superclásico is known worldwide as one of the fiercest and most important derbies. In April 2004, the English newspaper The Observer put the Superclásico at the top of their list of "50 sporting things you must do before you die", saying that "Derby day in Buenos Aires makes the Old Firm game look like a primary school kick-about."