Napoli boss Luciano Spalletti has warned Liverpool to expect the "scream" of the Stadio Diego Armando Maradona - as he expressed pride at sharing a touchline with Jurgen Klopp.
A full house of around 55,000 is expected when the Reds open their Champions League campaign with their Group A clash on Wednesday.
It's the third time in five years the teams have met at this stage of the competition, with Napoli having returned following a two-year absence. And Napoli boss Spalletti is in no doubt as to the importance of the occasion to himself, his players and the supporters.