How often do teams take that daunting trip to Anfield with a genuine expectation of winning against Jurgen Klopp's juggernaut of a side?
Liverpool are unbeaten at home in 63 games, have started the season well despite a tough run of games and yet those fortress walls could be in for a battering this weekend.
To call this game a banana skin for the Premier League champions is underselling it. The new £50million training base might as well be a luxury rehab centre given the Reds' staggering injury list and Leicester will think they're there for the taking.
Liverpool face the biggest test of this Premier League season so far in Leicester City on Sunday
The Foxes will go into Sunday's game at Anfield full in confidence at the top of the table
They say styles make fights and Brendan Rodgers' swashbuckling XI look tailor made to deliver a knockout.
The foundation of so much of Liverpool's recent success has been their settled defensive line but it has been decimated by injury.
Virgil van Dijk is out for the season with his cruciate ligament damage and his sidekick Joe Gomez is also sidelined for the long haul after a rupturing his patella tendon in England training.
Trent Alexander-Arnold, so often a focal point for the team in attack as well as defence, picked up a calf injury against Manchester City and Andy Robertson has recently tweaked a hamstring on international duty, though he could still play on Sunday.
The Reds have Trent Alexander-Arnold (right) out with Mo Salah and Jordan Henderson doubts
In midfield, Jordan Henderson faces a late assessment after feeling a niggle on England duty, Thiago Alcantara has not played since Richarlison's horror tackle on him in the Merseyside derby and Fabinho is returning to fitness after picking up a hamstring injury.
Mo Salah, the team's primary goal threat with eight in the league this season, is isolating having contracted coronavirus.
Even understudy right-back Neco Williams missed Wales' game against Finland is is doubtful for the weekend with a foot injury.
It must be said that Leicester have huge injury problems of their own at the back, Timothy Castagne and Ricardo Pereira are expected to be unavailable, Caglar Soyuncu and Daniel Amartey are long-term absentees and Wesley Fofana is facing a scan on his knee.
Leicester have injury concerns with Timothy Castagne (left) and Wesley Fofana (right) doubts
But it is Liverpool who are shamed by the numbers at the back this campaign. They have been conceding an average of two goals per game, ranking them joint 19th in the league.
It will be the job of a makeshift rearguard group to change that on Sunday. James Milner could slot in at right-back with Joel Matip and possibly Fabinho in the middle and Robertson or Kostas Tsimikas out