Striker Jamie Vardy and centre-back Jonny Evans are still months away from returning to ease the strain on Leicester's stretched squad.
Vardy suffered a hamstring injury in December and Leicester boss Brendan Rodgers says he is "looking into March" for the 34-year-old's comeback.
Evans has had surgery on his own hamstring problem.
"He has had an operation, so he will be April," added Rodgers, who will attempt to buy a centre-back in January.
"There's a little bit of time, but it is pressing," he said when asked about the possibility of strengthening during the transfer window.