Feyenoord Rotterdam is a Dutch professional association football club based in Rotterdam, which plays in the Eredivisie, the top tier in Dutch football. Founded as Wilhelmina in 1908, the club changed to various names before settling on being called after its neighbourhood in 1912 as SC Feijenoord, updated in 1974 to SC Feyenoord, and then to Feyenoord in 1978, when it split from the amateur club under its wing, SC Feyenoord. Since 1937, Feyenoord's home ground has been the Stadion Feijenoord, nicknamed De Kuip, the second largest stadium in The Netherlands.

Amsterdamsche Football Club Ajax, also known as AFC Ajax, Ajax Amsterdam, or commonly Ajax, is a Dutch professional football club based in Amsterdam, that plays in the Eredivisie, the top tier in Dutch football. Historically, Ajax is the most successful club in the Netherlands, with 36 Eredivisie titles and 20 KNVB Cups. It has continuously played in the Eredivisie since the league's inception in 1956, and along with Feyenoord and PSV Eindhoven, it is one of the country's "big three" clubs that have dominated that competition.