Top rated Ajax, nicknamed Godenzonen, Sons of the Gods, and Ajacieden, is a member of KNVB, Koninklijke Nederlandse Voetbalor Bond or Royal Netherlands Football Association and competes in The KNVB Cup or Dutch Cup tournament competition as well as the European Cup and UEFA Cup. Ajax is a member of the Eredivisie or Honorary Division - the top tier Netherlands football league. Ajax, known as Amsterdamsche Football Club Ajax, competes at their home stadium, Amsterdam Arena, located in Amsterdam.
Feyenoord from Rotterdam are Ajax's arch rivals. Every year both clubs play the "Klassieker" ("The Classic"), a match between the teams from the two largest cities of the Netherlands. PSV is also considered a rival, but in terms of tension and rivalry, these matches are not as loaded as the duels with Feyenoord.