Real Madrid boss Carlo Ancelotti admits Iker Casillas could be dropped.

Casillas is under pressure after struggling for recent form.

Ancelotti admits a call for Keylor Navas could now be on: "Keylor might play, equally Casillas could play. It isn't about singling anybody out.

"If Keylor plays it is about giving playing time to a player who is training very well. If Keylor plays, then Casillas will play against Barcelona. If Casillas plays, then Casillas will also play against Barcelona. Keylor is doing well. He isn't crying every day. He is enthusiastic. We works seriously and we have confidence in him."