Head coach Valerien Ismael says Watford are in "pain" as their hopes of a play-off place have faded because of recent results.
They have not won a home game since 28 November and were held to a 1-1 draw at Vicarage Road by Swansea on Wednesday.
Ismael's side have only won one of their last nine league games and are 13th in the Championship, 12 points adrift of the top six.
"A win is the only antidote against our pain at the minute," he said.
The former Barnsley and West Brom boss picked Daniel Bachmann in goal ahead of regular first-choice Ben Hamer, but he was beaten by an 18th-minute Ryan Andrews own goal.