Curtis Jones struck Liverpool's winner in a 2-1 victory over Chelsea at Anfield to keep Arne Slot's side top of the Premier League table on Sunday.
Mohamed's Salah's 29th-minute penalty put the hosts in front against the run of play but Chelsea levelled after the break as Nicolas Jackson was played through to score.
Chelsea were not level for long though as midfielder Jones got on the end of Salah's low cross to beat visiting keeper Robert Sanchez from close range.
It was never comfortable for Liverpool against a Chelsea side who had more goal attempts but they passed their biggest test of the Premier League season so far.