Tottenham fullback Sergio Reguilon won't rule out a return to Real Madrid.
Reguilon's sale to Real includes a buy-back option.
And the Spain left-back told El Larguero: "Madrid is my home and where I've grown up and they have given me everything.
"In the future it is not known but that possibility exists."
Reguilon admits the darkness of London takes some getting used to.
He also said: "I haven't adapted to the time in England, but at five you see everything dark. It's a different league but I adapt well to new situations. I can make more transitions in the game.
"But if I have to perform I have to perform in Spain and wherever. With all the great teammates. Son and Hojbjerg are good guys. There's a good group."
