The 29-year-old, who signed a new long-term contract earlier in the year, is regarded as one of the best midfield talents in world football.
Manchester City attempted to sign the Italian in the summer but saw a bid rejected, however, Baldini has opened the door to a January move.
"Should an offer arrive for him, we will consider it. In summer we heard an offer from Man City and because we listened to it, it means we took it in consideration. Then we decided to give up," Baldini told SkyTg24.
"Should another offer will arrive, we will listen again it, but we could also decide to give up on it again."
Roma currently sit sixth in Serie A.