Tottenham have been told they must pay £15million if they are serious about signing Athletic Bilbao midfielder Ander Herrera in January reports the London Metro.
The 22-year-old Spaniard starred in this summer's European U21 Championships, and scored the opening goal in a 2-0 victory in the final in Denmark.
Spurs boss Harry Redknapp is already busy working behind the scenes alongside chairman Daniel Levy to identify potential targets who could strengthen the club's push for a top-four finish this season.
Herrera is facing a month on the sidelines with a knee injury, so Tottenham scouts must wait patiently to see him in La Liga action, before making a decision on whether or not Redknapp should move to bring him to White Hart Lane.
Brazilian striker Leandro Damiao has also been earmarked as a potential recruit, alongside Sevilla's Alvaro Negredo, but as yet no final decision has been made on who the club will pursue when the transfer window reopens at the turn of the year.
Having added the likes of Emmanuel Adebayor and Scott Parker, as well as keeping hold of Luka Modric, Spurs have a realistic chance of breaking back into the top-four and returning to the UEFA Champions League, providing they don't fall away as the season draws to a close.