Club Atlético de Madrid
Atlético de Madrid was founded in 1903 by a group of Athletic Bilbao fans that lived in Madrid, giving the club its initial name of Athletic Club de Madrid.
Atlético Madrid's supporters are nicknamed "Colchoneros" ("Mattressers"), as the traditional mattresses ("colchones") in Spain had red and white stripes. The club won the UEFA Europa League three times between 2010 and 2018 becoming one of the most successful sides in the history of the competition.