Liverpool won their first game at Anfield as Premier League champions as a 2-0 victory piled the misery on relegation-threatened Aston Villa.
Having been angered by the Reds' 4-0 loss to Manchester City on Thursday, Jurgen Klopp saw his side triumph on Sunday even if the performance still left much to be desired.
Sadio Mane's 71st-minute goal broke the visitors' stubborn resolve before Curtis Jones added late gloss as Dean Smith's men, winless in nine in the league, remained in the bottom three.
For Liverpool, this was not the celebratory homecoming they would have envisaged after a first top-flight title in 30 years but their march towards the 100-point barrier continues.
A tepid first half made very clear that Villa's game plan was to sit deep and frustrate Liverpool, who simply could not find a way through.
Indeed, when the first shot on target finally arrived in the 33rd minute it was Alisson who was called into action and not former Reds goalkeeper Pepe Reina.
That Douglas Luiz strike, easily dealt with by Alisson, proved to be the closest either side came to breaking the deadlock before the interval.
With Liverpool having won their previous 23 home league matches, they were always likely to emerge victorious in this one and Klopp's side got the job done in the second half.
The German made a triple change on the hour mark, introducing Jordan Henderson, Roberto Firmino and Georginio Wijnaldum.
And finally, the breakthrough came. Mane – who scored a 94th-minute winner in the reverse fixture – stroked home from Naby Keita's assist via the underside of the crossbar to register his 50th Anfield goal for Liverpool.
Jones, who signed a new contract this week, was introduced in the 85th minute and scored his first Premier League goal four minutes later, steering into the bottom-left corner from Mohamed Salah's knockdown.