Watford have lost Etienne Capoue and Sebastian Prodl for Saturday's clash with Tottenham Hotspur.
The pair join Troy Deeney and Isaac Success in the treatment room.
"We have Etienne Capoue, Troy Deeney, Prodl and Success, all of them they are out," said the head coach.
"We have no idea [how long Capoue will be out for], but it's not too much I think.
"We'll try to get a good solution for the problems, this is our only choice. Once we know that they can't play, we need to take other solutions, I have other players who can play."
