Leicester punished wasteful Liverpool to clinch a 2-0 win and dump the Reds out of the Carabao Cup.
Shinji Okazaki and Islam Slimani struck in the second half after Jurgen Klopp's side failed capitalise on their first-half dominance.
Dominic Solanke, Philippe Coutinho and Alex Oxlade-Chamberlain missed decent chances before Liverpool wilted after the break.
They allowed Leicester to recover from what could have been a chastening first period and substitute Okazaki's introduction - coupled with Coutinho's withdrawal at half time - swung the game in the Foxes' favour.
It was first blood to the Foxes with Liverpool returning to the King Power Stadium in the Premier League on Saturday.