Groningen played almost the entire second half with a man less, after the red card of Norwegian Isak Määttä. As the game progressed, the pressure from Feyenoord increased, but the number of chances played remained limited.
A few minutes before the hour, he was still touched. A center from Oussama Idrissi was not hit by anyone and disappeared into the goal.
Pool Sebastian Szymanski has returned to Feyenoord after weeks of injury as a substitute.
Feyenoord, who beat sc Heerenveen in the cup tournament quarter-finals earlier in the week, are still active on three fronts. The club will play in the Europa League Round of 16 against Ukraine’s Shakhtar Donetsk on Thursday.