The Leicester midfielder Gelson Fernandes believes the Foxes must use their anger at defeat to Birmingham on Sunday to fire them to victory over Watford tonight.
The 2-0 defeat at St Andrew's, which saw Matt Mills sent off for a late tackle on Morgaro Gomis, ended a run of seven Championship games without defeat for Sven Goran Eriksson's men and left them stuck in midtable.
Watford, meanwhile, will head to the King Power Stadium on the back of a home defeat to Crystal Palace, and Fernandes wants Leicester to inflict further misery on the struggling Hornets by getting back on track.
The Swiss international, 25, has also rejected suggestions that the east Midlands club should respond to their weekend defeat by altering their style of play.
He told the Leicester City website: "You don't need to change a lot of things because you lose one game.
"The approach to the game on Sunday was OK, we fought for every ball, we try to play football and create chances so I don't think you need to question everything because you lose one game.
"We were unbeaten in a little while and we wanted to carry that on, so we were disappointed as a team because we lost the three points. But what's nice in football is you can play another game three days later, which is very lucky.
"We need to take that anger into the game on Wednesday because we have two games at home now and we need to do everything to win both of them."
While Leicester, who were among the pre-season favourites for promotion, will be heavily fancied to claim the three points, Fernandes says it would be a risk to take Watford lightly.
He added: "There are no weak teams in this league – we lost to Bristol City and Reading earlier this season and we're still chasing after those points now. We will need to be at our best on Wednesday to try to take a result."
Eriksson is set to hand a start to Republic of Ireland international Sean St Ledger in his defence as Mills begins a three-match ban following his dismissal.
Under-pressure Watford manager Sean Dyche, meanwhile, will be looking for a big improvement from his side after saying they had lacked team spirit and work ethic against the Eagles.Reuse content