Leicester will be without midfielder Youri Tielemans and defender Ricardo Pereira for Thursday's crucial Europa League tie against Legia Warsaw.
Manager Brendan Rodgers says Tielemans could return "within the next couple of weeks" from a calf problem.
Pereira's hamstring issue is "lingering a little bit" and the Portuguese will be out "for a few weeks".
The Foxes lie bottom of a very tight Group C, but will go top if they beat Legia.
On Wednesday, Spartak Moscow defeated Napoli 2-1 to lead the group.
Leicester have had an inconsistent season and are 12th in the Premier League, with a leaky defence conceding 21 goals in 12 top-flight games.