Dec 20 (OPTA) - Results and fixtures for the Eredivisie on Friday (start times are CET) RKC Waalwijk (1) 3 Twente (0) 0 Saturday, December 21 fixtures (CET/GMT) Heerenveen v Heracles (1830/1730) Sparta Rotterdam v AZ (1945/1845) PSV v PEC Zwolle (1945/1845) Willem II v Fortuna Sittard (2045/1945) Sunday, December 22 fixtures (CET/GMT) Ajax v ADO Den Haag (1215/1115) Utrecht v Feyenoord (1430/1330) Groningen v Emmen (1430/1330) Vitesse v VVV (1645/1545)