French football club founded by Geoffroy Guichard (previously founder of the mass-market retail group Casino) in 1919 as "Amicale des employés de la Société des magasins Casino". The club plays its home matches at the Stade Geoffroy-Guichard, nicknamed "Le Chaudron" ("The Cauldron") or "L'Enfer Vert" ("The Green Hell").