Islam Slimani will miss Leicester's FA Cup fifth round trip to Millwall on Saturday as he struggles with a groin injury.

The striker was a second-half substitute in the Foxes' 2-0 defeat at Swansea on Sunday but will not be risked when Claudio Ranieri's side travel to The Den.

The FA Cup has offered solace to a Leicester team fighting for their Premier League survival following a run of five straight league defeats.

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Their only two victories in 2017 have both come in the competition - at Everton in the third round and via a replay against Derby in the fourth round.

Meanwhile, Millwall's 10-match unbeaten run has propelled them into the League One play-off places.

They have not lost a match since December 17, having beaten two Premier League opponents en route to the fifth round, Bournemouth and Watford.

Team news

Millwall have been boosted by Calum Butcher being able to train on Thursday despite having an unspecified injury after Tuesday's league win over Port Vale.

However, boss Neil Harris has other fitness concerns, as Ben Thompson and Lee Gregory are both major doubts.

As well as Slimani, Leonardo Ulloa is also likely to sit out for Leicester with a thigh problem.

Ron-Robert Zieler could replace Kasper Schmeichel in goal and Ben Chilwell, Demarai Gray, Nampalys Mendy and Shinji Okazaki are all in line to start.

Opta stats

Millwall have progressed from their last two FA Cup ties v Leicester (round five in 1984-85 and round three in 1990-91), after losing the first two.

Leicester have won their last two games with Millwall (in the Championship in 2013-14), after losing each of the previous four.

Millwall last played in round five in 2012-13, beating non-league Luton on their way to the semi-final that season.

The Foxes last progressed beyond the fifth round in 2011-12, losing to eventual winners Chelsea in the sixth round.

The Lions have kept clean sheets in three of their four FA Cup games this season, conceding twice to Braintree Town in the second round.

Jamie Vardy scored twice the last time he played Millwall, as Leicester beat them 3-0 in November 2013.

Leicester have won 11 competitive games in 2016-17 so far; over half of which have come in cup competitions (five in Premier League, four in Champions League, two in FA Cup).

The Foxes have lost five of their six games this season directly before a Champions League fixture (D1).

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Merson's prediction

This is a real banana skin for the Premier League champions. Leicester's away form is absolutely atrocious and (Claudio) Ranieri has finally started talking about changing some of his players. I am going to predict a draw because the stadium will be sold out, it will be absolutely rocking and it's going to be ever so hostile for the Leicester players. Neil Harris is doing a great job at Millwall, they are flying up the league and they can get something out of this.

PAUL PREDICTS: 1-1 (9/2 with Sky Bet)

Betting

Leicester are Sky Bet's 7/5 favourites despite their poor form, with Millwall 2/1 while the draw is priced at 9/4.

The Foxes are sixth in the outright betting, albeit at significantly longer odds than the first five in the market at 16/1, while their hosts are given a 200/1 chance.

Gregory and Steve Morison are the 5/1 joint favourites in a wide-open first goalscorer market, with Vardy close behind at 11/2.

There's £250,000 up for grabs again in Soccer Saturday Super 6 this weekend for simply predicting the six correct scores. Enter your selections by 3pm here.