Pepe is in Real Madrid's squad for their Champions League meeting with Olympiacos tomorrow night.
The defender, who cost a staggering £20 million from Porto, has been missing for over two months.
Real coach Bernd Schuster said: "He will travel to Athens.
"He is progressing very well and he will be with us in Athens. We believe it is a good date so that he can have minutes, but it does not mean that he plays."