The 26-year-old, the division's top scorer last year, netted a hat-trick inside the opening 19 minutes and completed his personal haul after the break.

Feyenoord are the new leaders after Nicky Hofs' 55th-minute goal gave them a 1-0 win at Vitesse Arnhem, as Ajax, who started the weekend on top, could only manage a 2-2 draw at Sparta Rotterdam.

AZ Alkmaar's inconsistent form continued with a 2-2 draw at home to FC Groningen, while today's other game resulted in a 1-0 win for Roda JC at FC Twente.