By Mark Buckingham
Last Updated: 01/01/70 1:00am
PSV stretched their lead at the top of the Eredivisie after a 1-0 win over Heracles.PSV Eindhoven stretched their lead at the top of the Eredivisie after a 1-0 win over Heracles Almelo.
The Dutch champions were made to work hard for the points and had to wait until the 71st minute to make the breakthrough.
Jefferson Farfan scored the decisive goal, with the victory sending PSV five points clear of AZ Alkmaar.
Heerenveen jumped up to fourth after coming from behind to beat Vitesse Arnhem 4-1 at home.
Mads Junker provided the visitors with an eighth minute advantage, but Ugur Yildirim levelled on 19 minutes.
In the second half, Paul Bosvelt put Heerenveen ahead before goals from Lars Nilsson and Yildirim secured the points.
Mid-table RKC Waalwijk took care of struggling Willem II at home, with Jochen Janssen scoring the only goal of the game on 86 minutes.
Ramon Zomer's fourth minute effort was enough to hand Twente Enschede a win at home to Roda JC Kerkrade - a result which saw the teams trade places in the table.