Heracles continued their fine start to the season as they closed to within a point of Eredivisie leaders Ajax with a 2-0 home win over Heerenveen.
Iliass Bel Hassani blasted the opener into the roof of the net after escaping the attentions of the defence after 37 minutes.
Wouter Weghorst made the points safe nine minutes from time as Heracles made it six wins from eight in the league this season to go above Feyenoord into second.
Ajax and Feyenoord are both in action on Sunday with the former taking on PSV, live on Sky Sports 3.