Middlesbrough have completed the signing of Yanic Wildschut from Heerenveen for an undisclosed fee.
Cambuur Leeuwarden beat ADO Den Haag 3-2 in the Eredivisie, while AZ Alkmaar grabbed a 3-1 win over FC Dordrecht.
Heerenveen claim they have been approached by Middlesbrough over winger Yanic Wildschut.
Willem II beat AZ 3-0 for their first points of the Eredivisie season on Saturday, while Heerenveen also won.
Feyenoord's bid to start the campaign with back-to-back wins was frustrated by 10-man Heerenveen as they were held 1-1.
Sky Sports understands Stoke and Sunderland are among a host of clubs tracking Swedish winger Nabil Bahoui.
FC Twente needed a late equaliser from Youness Mokhtar to salvage a 1-1 draw at Cambuur Leeuwarden.
Sky Sports launches new channel dedicated to European Football - Sky Sports 5.
Real Madrid's Super Cup clash with Sevilla starts a stunning season of European football on Sky Sports 5.
Wolves are lining up a move for Dutch winger Rajiv van La Parra, Sky Sports understands.
AZ Alkmaar will take a big lead into their Europa League play-off semi-final second leg after a 3-0 win over Heerenveen.
Alireza Jahanbakhsh was NEC Nijmegen's hero with a two-goal haul helping to beat Ajax, condemning Roda JC to the drop.
Ajax clinched their fourth successive Eredivisie title with a 1-1 draw against Heracles Almelo on Sunday.
Roda JC's place in the Eredivisie's bottom three was confirmed on Saturday as they fell to a 3-0 defeat to FC Twente.
FC Twente boosted their hope of a top-two finish in the Eredivisie with a 2-0 win at NAC Breda, while PSV were thrashed.
Second-placed PSV Eindhoven dropped points at home as they were beaten 3-2 by Groningen on Saturday.
PSV moved to second place in the Eredivisie after they beat Roda JC and Vitesse Arnhem were beaten by Groningen.
Eredivisie leaders Ajax were held to a goalless draw at NAC Breda on Sunday, while FC Twente and Feyenoord both won.
Vitesse Arnhem kept the pressure up Ajax with a win at NAC Breda in the Eredivisie, while PSV Eindhoven beat FC Utrecht.
Alfred Finnbogason was again on the mark with a second-half strike that earned Heerenveen a 2-1 victory at Heracles.