It's reported that the Turkish side showed an interest in Viduka at a meeting with Leeds United chairman Gerald Krasner in London last week.
United would regretably have to sell if they fail to stay in the top flight and Krasner has already confirmed that changes will be made at the end of the season, but insists Leeds will not be ' forced sellers.'
Middlesbrough have already confirmed their wish to sign Viduka and are expected to make a move at the end of the season.
Any sales will depend on where United are playing next season.