Tottenham manager Andre Villas-Boas revealed this week is the subject of interest from a trio of clubs.
"There has been continuous interest from three different clubs in Luka," the Portuguese said.
"But it is important for Tottenham to hold on to their rights. His situation will continue as it is until the price is right.
"It's important to understand his feelings. We have been speaking and I understand his point and he understands the club's point."