Quique Flores has revealed that Watford have a list of "three or four players" that they will be trying to sign in the January transfer window.
The Hornets, who won promotion from the Championship last season, signed 13 players over the summer, helping the side sit 11th in the table after 14 matches.
The manager told reporters: "If some players come it's because they are close to playing or are ready to play at the first moment.
"We have one list with three or four players. We are very clear what are the areas we need and it's very important to be right because if not it's better to keep like we are in this moment."
Watford host Norwich City in the Premier League this weekend.