Having just seen Real win the inaugarel extended Supercopa de Espana tournament, Florentino insists there's no need to add to the team.
"Reinforcements this winter? There won't be any," said Pérez.
Zidane has been seeking a midfield addition and also cover for Karim Benzema amid doubts over Luka Jovic.
However, the Frenchman now faces having to wait until June to work the transfer market.