Leicester: The hosts could hand winger Riyad Mahrez his first start since his return from exile, whilst captain Wes Morgan could make the starting lineup for the first time since New Year's Day. There is some bad news though, with Shinji Okazaki still a doubt with a knee problem.
Sheffield United: The Championships side are struggling for numbers ahead of this one, with defender Kieron Freeman injured, goalkeeper Simon Moore and midfielder John Fleck suspended and midfield trio Ryan Leonard, Ricky Holmes and Lee Evans all cup-tied. There is some good news though as youngster David Brooks could feature for the visitors after overcoming glandular fever.
Leicester boss Claude Puel on Riyad Mahrez:
"He (Mahrez) enjoys to play and train with his team-mates and he is at a good level with no problem.
"He has come back with a smile. The story is behind him - all the players want to move on.
"It is important to put an end to the talking about Riyad. He came back to the game at Manchester City. We need to move on, for him he needs to kick on, like the team the most important thing is in front of us."
Sheffield United boss Chris Wilder on the return of David Brooks:
"David will be [in contention] because of the numbers situation. Our numbers are obviously down.
"He's been back with the group for the last couple of weeks and it really is left with the medical staff how long he can play.
"Playing 45 minutes, that's good for him and good for us."
Did you know?
Sheffield United haven't scored in their last four FA Cup games against Leicester.
Possible lineups:
Leicester: Jakupovic; Simpson, Morgan, Dragovic, Chilwell; Mahrez, James, Iborra, Gray; Diabate, Iheanacho.
Sheffield United: Blackman; Baldock, Stearman, Wright, O'Connell, Stevens; Basham, Lundstram, Duffy; Donaldson, Sharp.