Erwin Koeman will be without Karim Saidi or Dwight Tiendalli when Feyenoord take on ADO Den Haag Sunday lunchtime. Saidi misses the match with a knee injury the Tunisian picked up in training Thursday. ‘He took a knock to a ligament. He’s been troubled by the injury before,’ says Koeman, who has lost Tiendalli to a groin strain. Ron Vlaar meanwhile is making good progress and may be able to rejoin the squad in time for the match. The technical staff will take a decision on the Dutch international after looking at the player during Saturday training.