As Real battle to stay in touch with the LaLiga top four, Perez has begun plans to overhaul a squad which were Double winners just six months ago.
Diario Gol says Perez has identified as many as TEN senior players to be made available.
Karim Benzema, Gareth Bale and Cristiano Ronaldo will all be put up for sale - effectively ending the BBC era. Toni Kroos and Luka Modric will be allowed to move on, as will Marcelo.
Perez has retained his determination to dump goalkeeper Keylor Navas and three youngsters are also up for sale in Borja Mayoral, Achraf Hakimi and Marcos Llorente.
The president is at breaking point and now feels ready for the biggest clearout of his two eras in charge of the club.