"I felt some pain before Willem II game but I couldn't drop the chance of playing my first official game this season especially that keeper Henk Timmer was injured," the Egyptian keeper told FilGoal.com.

"Scans proved on Thursday that I have a problem in my knee, which reuires at least four weeks rest."

Ekrami was hoping to keep guarding Feyenoord's net in the last game of the league and the Cup final on April 27.

"I am really unlucky. I finally got my chance but I got injured," added the 25-year-old goalie.