There has been reported interest in individuals at the Zebrette including Luis Muriel, who wants to move to a bigger club, and Diego Fabbrini.
And the Udinese boss concedes he is uncertain about whether any more players will leave the side before the end of the transfer window.
“I do not know what's going to happen over the next two days," Guidolin told reporters.
“But I would be extremely happy if all my players stayed here.”
Ahead of Sunday’s game with AC Milan, Guidolin said that his Udinese side, who have won three of their last four matches, have enough about them to salvage something from the match.
He added: “It is indisputable that we can play better. We're not a big team, but we're good. We have to try and stay focused for the whole 90 minutes in every game.
“Against Milan we have to take the field with the belief that we can get a result.”