ROBIN VAN PERSIE admits he has no idea whether he will sign a contract extension at Manchester United.

Van Persie enjoyed a successful World Cup with Holland under United boss Louis van Gaal but he has yet to replicate that kind of form at club level.

Van Persie scored 30 goals in his debut year at Old Trafford, but last season he struggled for fitness and form and this term he has found the net eight times.

The 31-year-old's contract ends in the summer of 2016, and when asked if he would like to extend that deal, the striker said: "It is not up to me. For the moment I am staying here for 18 months.

"That is it really. I can't look into the future. I don't know what is going to happen after that. We shall have to wait and see."