Courtois could take almost a month to recover, which means he will miss the El Clasico on 26th October, according to SER.
The Belgian keeper will be absent from Granada clash and three consecutive games away from home (Mallorca, Galatasaray and Barcelona ) before returning to his own stadium hosting Leganés on October 30 after the 'El Clascio'.
Thibaut Courtois has worked this Thursday apart from his Real Madrid teammates. The Belgian goalkeeper has been exercising in the gym while the rest of the white team players trained in the preparation of the game against Granada.