Valencia are reportedly interested in signing Espanyol goalkeeper Kiko Casilla this summer.
Los Che already have Diego Alves on their books, but the Brazilian is expected to miss a large chunk of next season after suffering a serious injury on the final weekend of the campaign.
It is understood that Alves will not resume training until early 2016 after tearing his anterior cruciate ligament and according to reports in Spain, Los Che boss Nuno will make a move for a new stopper.
Espanyol's Casilla is said to be top of the list, with the 28-year-old one of the most experienced goalkeepers in La Liga.
Casilla is believed to have a release clause in the region of £8m.