Spain coach Vicente Del Bosque admitted that he has yet to make a decision on which goalkeeper will start in their Euro 2016 Group D opener against Czech Republic on June 13.
The defending champions are gunning for a third consecutive European title, and the trio of Iker Casillas, David De Gea and Sevilla's Sergio Rico are all in contention to be in the starting lineup for Del Bosque's side.
Spain are in Group D alongside the Czech Republic, Turkey and Croatia. A final friendly against Georgia on Tuesday, after their 6-1 rout of South Korea last week, will give the 65-year-old coach the chance to decide on which goalkeeper will start against the Czechs.
"It's possible that De Gea will play tomorrow [Tuesday]. Casillas did so against South Korea and that's all we can say," said Del Bosque.
"I don't have to make that decision now, and I'll make my mind up at a later date."
While the goalkeepers continue to compete for that starting berth, Del Bosque is more concerned that his outfield players have enough time to gel as a unit, with players like Nolito, Aritz Aduriz and Mikel San Jose making their first trip to a major tournament.
"I don't know because our concern is that the 20 field players have a chance and become familiar," he added.
"We know how we're going to play. The most important thing is to know how we play and tomorrow we will put it into practice."
Should Spain lift the European trophy for the third time in eight years, they will become the first country to ever win it for a record four times.