The winter transfer window opens on Thursday and City could see both incomings and outgoings.
BBC Sport has reported Guardiola’s side are close to agreeing terms with Bournemouth to sign forward Antoine Semenyo for £65m.
“I have to be careful what I say,” Guardiola said when asked about the Ghanaian’s future.
“That is why I said yesterday before and the day of the game – the transfer window is completely closed right now.”
Meanwhile, winger Oscar Bobb could head out on loan to Bundesliga side Borussia Dortmund for the rest of the season, with the clubs in advanced talks.
When asked about that, Guardiola added: “When it’s going to happen, it’s going to happen. I don’t know any news about anything right now. You can ask Oscar, not to me.”
