Town could hand a debut to new signing Brian Murphy, with Arran Lee-Barrett's place in goal under threat.
Jon Stead's suspension means Stern John will again lead the line, while Gareth McAuley continues to play on despite breaking his wrist on Boxing Day.
It may seem fanciful to label this as a match between two play-off rivals, given the visitors begin the weekend 14 places and 13 points behind Leicester.
But a run of one defeat in 12 league games has given Ipswich fans some hope that a season which started in disarray could yet be salvaged.
Leicester enjoyed a hugely successful 2009, comfortably winning League One before quickly finding their feet in the Championship.
The Foxes are confident the match, which was moved to Sunday to accommodate Leicester Tigers' game against Wasps 24 hours earlier, will go ahead. The Walkers Stadium has undersoil heating, while plans are in place to keep nearby roads and car parks free of ice.
• Ipswich have won only one of their last seven games away to Leicester, a 2-1 victory on Boxing Day 2002.
• The Foxes have lost only one of their last five against the Suffolk side.
• Leicester have won their last three in all competitions. This will be their fifth successive home game.
• All but two of Leicester's 10 league victories have been by a single goal.
• They have scored in each of their last 10 Championship games.
• The Blues have lost only one of their last 12 league games, a 3-1 loss at Crystal Palace on Boxing Day.
• The Tractor Boys are still the Championship's draw specialists, with 12 of their 23 matches finishing level.
• Gareth McAuley, who is facing his former side, is set to make his 200th career league appearance.
Source: BBC Sport
Source: BBC Sport