By Alex Livie
Last Updated: 01/01/70 1:00am
Ajax's winning run came to a shuddering halt at Heerenveen on Friday evening.Ajax's winning run came to a shuddering halt at Heerenveen on Friday evening.
Danny Blind's men appeared to turn a corner when stringing four wins together recently, but they were put to the sword by Heerenveen at the Abe Lenstra.
Ajax have struck a deal to sign Klaas Jan Huntelaar from Heerenveen next month, but he showed his focus is still on his present club as he scored the second goal in the 4-2 win.
A brace of goals from Georgios Samaras and a strike from Andre Hanssen added to the effort from Huntelaar to hand Heerenveen a convincing win.
Thomas Vermaelen added a consolation for Ajax who also notched a late penalty through Tomas Galasek after Paul Bosvelt had been dismissed for Heerenveen.
Groningen came back from a goal down to claim a 3-1 win at Roda JC.
Andres Oper fired Roda ahead on 11 minutes, but Groningen bagged three goals in the final 18 minutes from Danny Buijs, Mark Fledderus and Erik Nevland to nick the points.
A brace from Gert-Jan Tamerus and strike from Sota Hirayama helped Heracles claim a 3-1 home win over Vitesse Arnhem.
The games between AZ Alkmaar and ADO Den Haag and Sparta v NEC Nijmegen were postponed.