The regular starters have been called up by their national teams for international friendly matches, the club said on its website, reports Efe.
Apart from the club's internationals, five other players could not train with the rest of the group.
Portuguese star Cristiano Ronaldo, Fabio Coentrao and Frenchman Karim Benzema trained individually, while Spaniards Isco Alarcon and Mariano Diaz exercised indoors.
Amid the absence of the internationals, coach Zinedine Zidane called up six players from Real Madrid's second division team, including Alvaro Tejero, Aleix Febas, Borja Sanchez, Federico Valverde, Enzo Zidane and Sergio Diaz.
