Feyenoord coach Ronald Koeman has blown their chances of signing permanently Manchester City striker John Guidetti.

Koeman ripped into Guidetti following the teenager's performance in his side's 3-1 win over NAC Breda last weekend.

Koeman said: "John will be best served to work harder on the field. And he must be less concerned with his own game and more about Feyenoord."