The reigning La Liga and Champions League winners already trail Barcelona by eight points and have made some dismal displays so far this season.
Real Madrid star Cristiano Ronaldo believes the team's situation could be reverted with the signing of a new goalkeeper. The Portugal international does not feel Keylor Navas is up to the standards expected at the Bernabeu and has reportedly handed Florentino Perez a four-man shortlist of keepers.
As reported by the aforementioned source, Manchester United's David De Gea, Chelsea’s Thibaut Courtois, Barcelona stopper Marc-Andre Ter Stegen and Bayern Munich star Manuel Neuer are Ronaldo's choices to stand between the sticks for 'Los Blancos'.
'Diario Gol' underlined that the Barcelona ace is Ronaldo's preferred choice, but Real Madrid are aware of the difficulties involved in his signing. De Gea came close to a move to the Bernabeu in 2015 and his future remains up in the air.