ADO Den Haag is a Dutch football club from the city of The Hague. Despite being from one of the traditional three large Dutch cities, it has not been able to match AFC Ajax, Feyenoord or PSV in terms of success in the Eredivisie or in European competition. There is nonetheless a big rivalry with Ajax and Feyenoord. The words Alles Door Oefening means Everything Through Practice in Dutch.