Which Chilean football club is Colo-Colo's biggest rival?
Cobreloa
Universidad Católica
Universidad de Chile
Unión Española
Answer
Colo-Colo's biggest rival is Universidad de Chile. The matches between these two teams are highly anticipated and fiercely contested, reflecting the intense rivalry between the clubs.
Club Social y Deportivo Colo Colo Knowledge Quest: 19 Questions for the intellectually curious