Arsenal are among those on transfer alert after teenager Orkun Kokcu told Feyenoord he wants to leave.
The Dutch season was ended last week with the Rotterdam club in third and missing out on next season’s Champions League.
Feyenoord boss Dick Advocaat admitted in March that Arsenal were interested in 19-year-old midfielder Kokcu, although yet to make any formal offer.
Sevilla are also interested, according to comments this week from the club’s sporting director Frank Arnesen.
He said: 'There are no offers. But we are aware of Sevilla’s interest.
‘We have held meetings, and there are four clubs interested in him, one of them is Sevilla.