Hornets boss Ray Lewington is likely to introduce a make shift squad as they entertain Neil Warnock's Sheffield United.
Captain Neil Cox was rested in the midweek 3-0 defeat to Reading at Vicarage Road, but it is likely that he will return to the squad.
Young players such as Anthony McNamee, Jack Smith, Scott Fitzgerald and Jamie Hand have been told that they will play some part on Sunday against the play-off contenders.
Icelandic striker Heidar Helgusson will not be playing as he has a injured ankle while Paul Robinson is suspended.
Blades boss Neil Warnock is expected to play the same side that
demolished Bradford City 3-0 on Tuesday night in the Yorkshire Derby.
Veteran midfielder Stuart McCall made the start against his old club while Shaun Murphy made the bench after shaking off a slight
injury.
Strikers Steve Kabba, Wayne 'Chief' Allison and Paul Peschisolido came off the bench in that great victory over the Bantams and all will be looking for a first team start.
Prediction: Watford 1-2 Sheffield United
| Watford Alec Chamberlain Micah Hyde Tommy Smith Allan Nielsen Paolo Vernazza Stephen Glass Marcus Gayle Jason Norville Gavin Mahon Sean Dyche Neal Ardley |
| Sheffield United Paddy Kenny John Curtis Phil Jagielka Robert Page Robert Kozluk Michael Brown Stuart McCall Peter Ndlovu Michael Tonge Carl Asaba Dean Windass |