This app contains amazing stickers from one of the biggest clubs in Spain and the world. Club Atlético de Madrid is popularly known by the nickname Colchoneros. This app is unofficial.Club Atlético de Madrid is a Spanish football club, based in the city of Madrid, founded on April 26, 1903.It was founded as Athletic Club de Madrid by Basque students who supported Athletic Bilbao. The team from the Spanish capital would cease to be a subsidiary in 1921, when it broke away from the Basque team. Even so, the similarity of the uniforms, names and badges, originated in reason of how the Madrid club was created, remained.