The KNVB communicated this an hour and a half before the kick-off of the match in Rotterdam (9 p.m.).
“Due to the disturbances at Vitesse – Sparta, the television cameras in certain positions will not be manned this weekend in the Eredivisie. That is why there is no offside technology available at Feyenoord – FC Groningen tonight. This does not apply to the other matches this weekend”, the football association communicates via Twitter†
According to a KNVB spokesperson, the fact that no offside technology is available only in De Kuip has to do with the position of the camera in question. It is located between the audience, while the camera of other clubs that play at home is higher in the stadium. The assessment was made by broadcaster ESPN itself, according to the football association. Friday night there was an explosion near a cameraman of ESPN a piece of fireworks.
View the results, position and program in the Eredivisie here