Mauro Icardi's penalty in extra-time forced a shoot-out, but Radja Nainggolan missed as Lazio eliminated Inter Milan to reach the Coppa Italia semi-finals.
Italian Cup: Felip Anderson scores first goal since return from injury to help Lazio cruise into quarters
Felipe Anderson scored his first goal of the season as Lazio cruised into the quarter-finals of the Italian Cup after beating Serie B side Cittadella 3-1.
Liverpool midfielder Lucas Leiva said on Tuesday he had left "one of the greatest clubs in the world" for a new life at Lazio.
Two victories from their final two matches will book Liverpool's place in next season's Champions League, but Jurgen Klopp's side won't be taking anything for granted when they face West Ham on Sunday.
Jurgen Klopp pledged Lucas Leiva would remain at Liverpool after the Brazilian's goal secured a 1-0 FA Cup third-round victory at fourth-tier Plymouth.