Klopp has made no changes to his starting lineup from the 2-1 loss at home to Crystal Palace last time out, as he looks to inspire a final push for the top four.
Liverpool lost in their last trip to Vicarage Road at the end of 2015, when a goal from Nathan Ake and a brace from Odion Ighalo dealt a miserable blow to stand-in goalkeeper Adam Bogdan.
Klopp will be hoping his latest visit to Hertfordshire is much different, and Lallana and Sturridge’s return to the fold will aid this significantly.
Watford: Gomes; Mariappa, Prodl, Britos; Janmaat, Cleverley, Doucoure, Capoue, Amrabat; Deeney, Niang
Substitutes: Pantilimon, Kabasele, Eleftheriou, Zuniga, Behrami, Success, Okaka
Liverpool: Mignolet; Clyne, Matip, Lovren, Milner; Lucas, Can, Wijnaldum; Firmino, Coutinho; Origi
Substitutes: Karius, Klavan, Moreno, Alexander-Arnold, Grujic, Lallana, Sturridge