Courtois joined up with Martinez's squad after being dropped by new Real coach Zinedine Zidane for their win against Celta Vigo.
Martinez said: "Thibaut is a great goalkeeper and I hope to see him in tomorrow's game.
"He has received the award for best goalkeeper in the world, I have no doubt about him and I consider him the number one in the world.
"I have not talked to him about his situation in the club."
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