PSV Eindhoven emphatically proved they remain the team to beat in Holland after ending Feyenoord's unbeaten start to the season with a 4-0 thrashing of the Rotterdammers.
Feyenoord strengthened significantly over the summer, bringing in the likes of Giovanni van Bronkhorst, Kevin Hofland and Roy Makaay and were expected to make a strong challenge for the title.
They certainly started well with four successive wins at the start of the season.
But they were put firmly in their place at the Philips Stadion as PSV ran riot.
Kenneth Perez opened the scoring after 35 minutes and Ronald Koeman's men were 3-0 up by half-time after strikes from Edison Mendez and Perez. Danny Koevermans added a fourth two minutes from full-time.
Two other title contenders met at the DSB Stadion with Ajax edging out AZ Alkmaar 3-2.
The Amsterdam club opened the scoring through Klaas-Jan Huntelaar with Luis Suarez then doubling their advantage.
A Demy de Zeeuw goal raised AZ's hopes on the stroke of half-time, but a missed penalty from Mounir El Hamdaoui proved costly as Suarez struck again to effectively seal the win before Moussa Dembele grabbed an injury-time consolation.
FC Twente are still unbeaten after seeing off NEC Nijmegen 3-0, FC Utrecht are up to eighth after a 3-2 win at Heerenveen, while Excelsior led 1-0 at home to Groningen but went down 3-1 and have now lost all five games this season.