Manchester United and Manchester City were both interested in signing Monaco midfielder Fabinho in the summer.
Fabinho, who plays as a right-back or defensive midfielder, was the subject of speculation throughout the last transfer window.
The Brazilian eventually remained with the Ligue Un champions despite the squad being picked apart by more illustrious clubs.
Monaco vice-president Vadim Vasilyev has confirmed that he expects to once again have to fend off interest in January.
“He’s one of the key players in our squad, a very regular player,” said Vasilyev. “He’s very important, we can always count on. We are very happy that we managed to keep him. I think this is one player you want to keep forever.
“But we realise in Monaco we have a certain model, that at a certain moment when we feel it’s right we have to let players go in order to be successful again. This is not only about money; this is more about being successful.”
Asked whether he expected Fabinho to stay beyond January, Vasilyev replied: “Yes, that’s the idea of course. You never want to make any major changes in January, except something really extraordinary.”
The club’s vice-president then admitted that there had been “strong” interest from both Manchester clubs in the summer.
“This is just normal. We just have to find the right time for each of the players,” he added.