The Western Derby (/ˈdɜːrbi/) is the name given to the Australian rules football match between the West Coast Eagles and the Fremantle Dockers, who both participate in the Australian Football League (AFL). As both teams are based in Perth, the capital city of Western Australia, the term "derby" is used to describe the match. It has become one of the most important matches for football in Western Australia, with former South Fremantle and West Coast player, and former West Coast coach John Worsfold claiming that in the week before a derby that it is the main topic in Perth.