The Foxes have been in tremendous form in recent weeks, and they upset Fulham on Tuesday night by beating the Premier League outfit in the Capital One Cup by a 4-3 scoreline.
In the league, Nigel Pearson's side have won seven out of their last nine fixtures, and another triumph here would keep them in contention with leaders Burnley.
Leicester City: WLWWW
Possible starting lineups
Watford: Almunia; Faraoni, Pudil, Ekstrand, Angella, Doyley; Murray, McEachran, McGugan; Deeney, Forestieri
Leicester City: Schmeichel; Moore, Konchesky, Wasilewski, Morgan; Drinkwater, Knockaert, King, Dyer; Vardy, Nugent
Sports Mole says: 1-2