Cardiff will assess both Michael Chopra and Aaron Ramsey as they look to get back to winning ways.
Striker Chopra missed Saturday's 2-1 defeat at Nottingham Forest with an ankle injury, reported by some sources as a fracture, but it is not believed to be as serious and manager Dave Jones does not expect him to be a long-term concern.
On-loan midfielder Ramsey also sat out at the City Ground with a thigh problem and requires a fitness test, with both players "touch and go" to face the Foxes according to Jones.
A couple of faces missed training on Sunday due to illness and will be monitored, along with full-back Paul Quinn who came out of Saturday's game with a tight calf to go with a hamstring problem he shrugged off ahead of the clash.
Cardiff surrendered an unbeaten seven-match league run versus Forest and they will now come up against Sven-Goran Eriksson's resurgent Leicester, who have won seven of their previous eight.
It will be Leicester's first visit to the Welsh capital since last May when they lost 5-3 on penalties in a dramatic shootout to settle a wonderful play-off semi-final, which ended 3-3 over the two legs.
Darius Vassell is a slight concern for Leicester ahead of the trip to Cardiff.
The experienced striker did not train on Monday due to a tight hamstring and he is a doubt.
Fellow forward Steve Howard is manager Sven-Goran Eriksson's only other injury problem. Howard has missed the last two matches with an ankle knock and he will be monitored.
Martyn Waghorn, who scored an injury-time match-winner against Bristol City on Friday night, would start should Vassell or Howard not make it.
Eriksson is blessed with options should he wish to make changes. Defenders Jeffrey Bruma, Bruno Berner and Miguel Vitor and midfielders Lloyd Dyer and Yuki Abe are also available for recalls.
Victory in south Wales could take Leicester into the play-off positions.
