Valencia face a dilemma over Ever Banega's contract.
Los Che are under pressure from Arsenal, Liverpool and Inter Milan to keep hold of the Argentine, who has exploded this season under coach Unai Emery.
Banega is inside the final two years of his current deal and Valencia are yet to open negotiations about a new agreement. Valencia have concerns Banega may demand terms outside their wage structure.
Arsenal boss Arsene Wenger, who is also keen on Valencia teammate Dani Parejo, sees Banega as a natural replacement for Manchester City's Samir Nasri.
Tottenham boss Harry Redknapp has also made personal checks on Banega this year.