Despite the lack of fans, Courtois insists it will still be exciting to take part.
He said, "It is a very special match. It is one of those that since childhood if you can see it later you will see it on TV.
"These types of games are special, with which you dream of playing one day as a child. El Clásico is important, it is the first 'hit' between the two greats. They are beautiful.
"One day this one is the best and another day is the other. They are duels in which we try to help the team win. Hopefully on Saturday I can help Real Madrid win against Barça."