Club Social y Deportivo Colo-Colo (Spanish pronunciation: [ˌkolo ˈkolo]) is a Chilean football club based in Macul, Santiago. Founded in 1925, they play in the Chilean Primera División, from which they have never been relegated.^[1] The team has played its home games at Estadio Monumental David Arellano since 1989.^[2] Colo-Colo is regarded as the most successful club of Chilean football.