Borussia Dortmund CEO Hans-Joachim Watze has admitted that his midfield maestro Nuri Sahin may exit the club at the end of the current season.
The German-born Turkish international has turned down a contract extension at the Bundesliga outfit and Watze believes he will have to negotiate a move away for the player.
"We have already tried to extend his deal," Watze explained to German publication Bild.
"Unfortunately this has still not yet succeeded. If Nuri [Sahin] gets an offer from Real Madrid or Barcelona, he has every right to talk about it with us. Then we will sit down with him and discuss it.''
However Watze is determined to get an immediate replacement if his midfielder should leave in the summer and he has targeted an exchange with Nurnburg for their coveted playmaker Ilkay Gundogan.
"We would like to oblige him [Gundogan]. This means that we are financially with him but first FC Nurnburg have to agree. If Ilkay Gundogan wants to develops more, he is coming to the right place,'' Watze asserted.
Since Nuri Sahin's contract at Dortmund only runs until 2013, meaning the 22-year-old could leave the German outfit for a knockdown fee next summer, Watze does not want his club to suffer financially or miss out on the opportunity to cash in on a prized asset.