The Argentina international is nearing the end of a two-year loan deal at Old Trafford with United having to negotiate a transfer fee and personal terms if they wish to keep him beyond the summer.

Tevez impressed in his first season but has found opportunities limited during the current campaign since the summer arrival of Dimitar Berbatov.

And he told the Daily Express: ''I do have a great feeling about Manchester United and, in particular, the fans. I have a great affection for them and they have made the feeling phenomenal.

''But at this point I am not sure if I will stay, not least because it is not just my decision.

''It is up to Manchester to decide if they want to keep me - and I have to decide what is right for my career, for my future.''

Tevez admits he is frustrated at the moment, highlighting his form last year and saying: ''But this season I have been benched and I find that hard to understand when I am not playing badly.''

The former Corinthians striker also fought his corner over his role in the 'Carlos Tevez affair', relating to penalties suffered by West Ham for breaching rules banning third-party ownership when he played for the Hammers.

He said: ''As far as I am concerned, why should it be the Carlos Tevez affair? It is West Ham's affair. This is not my problem and it was not my fault. I did nothing wrong.''

He added: ''If West Ham have not submitted the documents correctly, that is down to them.''