AMSTERDAM, Dec 30 (Reuters) - Klaas Jan Huntelaar scored one goal and set up another to inspire Heerenveen to a stunning 4-2 win over his future employers Ajax Amsterdam on Friday.
Huntelaar, the Dutch first division's leading scorer with 17 goals, doubled Heerenveen's lead in the 38th minute, three minutes after Greek Georgios Samaras had opened the scoring.
Midway through the second half Andre Hanssen added a third after being set up by Huntelaar and Samaras scored his second to put Heerenveen 4-0 up.
Defender Thomas Vermaelen pulled one back from close range 11 minutes before time and Tomas Galasek converted a disputed penalty for Ajax in injury time.
Heerenveen finished with 10 men after Paul Bosvelt's late dismissal.
The 22-year-old Huntelaar will join Ajax in January in a nine million euro ($10.65 million) transfer deal.
PSV Eindhoven are top with 42 points after their 1-1 home draw against Twente Enschede on Thursday, one point ahead of Feyenoord, who thrashed Willem II Tilburg 6-1.
AZ Alkmaar are third with 38 points and a game in hand as their match against ADO Den Haag was postponed due to adverse weather conditions.
Ajax remain fourth with 30 points, one above Heerenveen, Utrecht and Groningen.
Groningen fought back from a goal down to score three in the final 18 minutes and beat Roda JC Kerkrade 3-1.
Andres Oper opened the scoring for Roda but Danny Buijs, Mark Jan Fledderus and Erik Nevland turned the tide for Groningen, who climbed to seventh on 29 points.
Heracles Almelo scored three first half goals through Sota Hirayama and a quick double by Gert Jan Tamerus in a 15-minute burst to seal a 3-1 win over Vitesse Arnhem.