Leicester have been monitoring Curtis Davies and Miguel Vitor ahead of the visit of Leeds.
Both players are nursing injuries following the defeat in the snow at Ipswich. Davies was forced off midway through the second half at Portman Road with a tight hamstring, while fellow defender Vitor complained of a groin problem after the game.
Jack Hobbs, Davies' replacement in Suffolk, and Michael Morrison are on standby.
Roman Bednar missed out last weekend with a knock and the striker is likely to come straight back into the team if he has recovered.
Midfielder Matt Oakley and striker Steve Howard could also be in line for recalls should boss Sven-Goran Eriksson wish to make further changes.
Leeds could be without central defenders Andy O'Brien and Alex Bruce for the game.
O'Brien has been struggling with a thigh strain since the start of this month, while Bruce was forced off after 11 minutes in the home win over QPR due to a hamstring injury.
Leigh Bromby could be given an extended run alongside Neill Collins in the side after stepping off the bench to replace Bruce last week.
Manager Simon Grayson, who has no other injury concerns, is not expected to make any unforced changes as his side look to extend their unbeaten league run to 10 matches, but the likes of Davide Somma, Billy Paynter, Ross McCormack, Lloyd Sam and Amdy Faye are all pushing for a place in the starting line-up.