Leicester boss Brendan Rodgers is hopeful Jonny Evans will be fit to face Watford.
The defender pulled out of Thursday’s 3-1 Europa League win over Legia Warsaw following the warm up with a thigh issue.
Watford duo Ismaila Sarr (knee) and Nicolas Nkoulou (hamstring) have been ruled out of the trip to the King Power Stadium after sustaining injuries in last weekend’s 4-1 win over Manchester United.
Juraj Kucka returns to contention following a one-match ban, while defender Christian Kabasele (hamstring) is back training but not expected to feature against the Foxes.
Ken Sema (knee), Francisco Sierralta (hamstring), Kwadwo Baah (ankle) and Peter Etebo (quad) remain sidelined for the Hornets.
Leicester provisional squad: Schmeichel, Ward, Jakupovic, Castagne, Thomas, Bertrand, Soyuncu, Nelson, Evans, Amartey, Vestergaard, Ndidi, Daley-Campbell, Choudhury, Dewsbury-Hall, Soumare, Maddison, Albrighton, Barnes, Marcal-Madivadua, Lookman, Vardy, Perez, Iheanacho, Daka.
Watford provisional squad: Foster, Bachmann, Masina, Cathcart, Femenia, Ngakia, Rose, Troost-Ekong, Louza, Gosling, Tufan, Cleverley, Sissoko, Kucka, King, Dennis, Hernandez, Pedro, Fletcher.
