In March 2018, Feyenoord and ADO Den Haag played a charity match at De Kuip in support of the "Support Casper" campaign,... aimed at research into pancreatic cancer, an initiative of renowned sports physician Casper van Eyck (who was Feyenoord's club doctor). Feyenoord won that match 4-0, with the proceeds going to the foundation, an action that raised awareness of the fight against this disease.