CA Osasuna FC, commonly known as Osasuna, was founded in 1920 and is a professional football club based in Pamplona, Navarre, Spain. Osasuna is the only club from Navarre to have participated in La Liga. The club has a competitive relationship with Real Madrid and other Basque clubs, especially Athletic Bilbao.
Osasuna is the only club from Navarre that has ever participated in La Liga. The club has a certain competitive relationship with Real Madrid in La Liga, as well as with other Basque clubs, especially Athletic Bilbao.
When mentioning Osasuna's arch-rival, it is R. Zaragoza. The conflict between the two clubs dates back to a match in October 1987, when Zaragoza fans threw an unidentified object at Osasuna goalkeeper Roberto Santamaría. Since then, matches between the two clubs have become one of the most heated rivalries in Spanish football.