How long until his contract runs out? Not sure if you know or not but an English club can only speak to another player at an English based club 1 month before his contract runs out. Other than that I haven't got a clue sorry.
Try an enquiry - I often use this to secure players before they're contract runs out if I really want them. If you haven't got too long to wait then they only ask for a small amount - sometimes nothing at all!
How much is the player currently valued at and how long has he got on his contract?