Club Social y Deportivo Colo-Colo is a Chilean professional football club based in Macul, Santiago. Founded in 1925 by David Arellano, they play in the Chilean Primera División, from which they have never been relegated. The team has played its home games at Estadio Monumental David Arellano since 1989. Colo-Colo is regarded as the most successful club in Chilean football.

Santiago, also known as Santiago de Chile, is the capital and largest city of Chile and one of the largest cities in the Americas. It is located in the country's central valley and is the center of the Santiago Metropolitan Region, which has a population of seven million, representing 40% of Chile's total population. Most of the city is situated between 500–650 m (1,640–2,133 ft) above sea level.