Millwall will be without first-choice centre-backs Paul Robinson and Dan Shittu, who have still not recovered from hamstring problems.Neil Harris is set to miss out again because of a back strain, but Kevin Lisbie is expected to be added to the bench after a knee problem. [LNB]Leicester's on-loan striker Roman Bednar has shaken off a knock and could return to the starting line-up. [LNB]Miguel Vitor is hoping to recover from a groin problem in time. [LNB][LNB] MATCH PREVIEW Millwall are enjoying their longest unbeaten run of the season. The Lions have not lost in five matches, which is their best sequence since going 11 games without losing late last season. [LNB]They were denied a win at Portsmouth last time out by David Nugent's second-half equaliser, and will now be looking to extend Leicester's poor run of away results. [LNB]City also drew on Boxing Day, battling back from two goals down to draw 2-2 with high-flying Leeds at the Walkers Stadium. But they have suffered three successive defeats on the road. [LNB]Leicester are yet to win on their travels under boss Sven-Goran Eriksson. Another loss on Tuesday would make this their worst away run since they lost four in a row almost five years ago. [LNB][LNB] MATCH FACTS Head-to-head[LNB]• Leicester have won their last two away matches against Millwall 1-0. [LNB] Have your say on this match • Millwall have only won two of the last 13 league meetings between these clubs. [LNB]• City have scored 50 goals against the Lions. [LNB]Millwall[LNB]• Millwall have won two, drawn two and lost two of their last six league games at home. [LNB]• They have not ended a calendar year with a defeat since 2003. [LNB]Leicester[LNB]• A victory for Leicester would see them end a calendar year on a winning note for the third time in a row. [LNB]• If selected, Matt Oakley will make his 499th career appearance.