River boast a record 36 league titles, but Boca are catching up, winning three of the last four to move on to 33. Boca have won six Libertadores titles to River's three, and victory at the Bernabeu would see them join Independiente as the side to have won the most continental titles in South America.
Superclsico is the football match in Argentina between Buenos Aires rivals Boca Juniors and River Plate. It derives from the Spanish usage of "clsico" to mean derby, with the prefix "super" used as the two clubs are the most popular and successful clubs in Argentine football.