According to Spanish newspaper 'AS', the European champions have been closely following three world-class goalkeepers in a bid to replace the Costa Rican in the summer.
Despite not having secured a manager after the departure of Zinedine Zidane, Real Madrid are steaming ahead with their transfer targets ahead of their next campaign.
'Los Blanco' president Florentino Perez is keen to prepare a squad capable of challenging runaway La Liga champions, Barcelona after they finished in third position, 17 points behind the leaders.
Real are keeping tabs on Roma's number one Alisson, Thibaut Courtois and Jan Oblak. The Brazilian is tied to the Serie A outfit until 2021 and would set Madrid back £70million.
Chelsea's Courtois has scouted for quite a while by the Spanish side, and is yet to agree to new terms at Stamford Bridge, meanwhile the Atletico goalkeeper, Oblak is valued at £87million and has until 2021 for his contract to run.