Chelsea are focused on winning trophies rather than signing players, manager Mauricio Pochettino said before Friday's FA Cup fourth-round game against Aston Villa.
The January transfer window ends next week on Thursday, 1 February.
"We are desperate to win a title, not to sign players - I'm happy with the squad," said Pochettino.
"But we know the last week has the most action and we need to be ready for anything that can happen in the squad."
Chelsea struggled in the first half of the season, but have won their past three Premier League games and reached the Carabao Cup final by beating Middlesbrough on Tuesday.