Thibaut Courtois was dropped to the bench in Zidane’s first game in charge since his return last week, with the Capital club beating Celta Vigo 2-0.
However, the Frenchman insists that every player will be called upon to revive the team’s fortunes.
"No one can take away what all these players have achieved in the past. I have a squad of 25 players and I am going to have to count on all of them, on Courtois, Keylor, Isco...,” he told MARCA.
"Those who played today were very good but I am going to use everyone. There are of course those who are sometimes going to be left out, who are not going to play."
Asked why he benched the Belgian, Zidane said: "It's not a final decision, there are 10 games left.
"Thibaut is going to play again and the third goalkeeper is Luca (Zidane). That's three good goalkeepers but Madrid should have three or four great goalkeepers.
"You cannot contest four, five or six competitions with just one great goalkeeper."
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