Liverpool goalkeeper Alisson took a moment to mock opposite number Jordan Pickford as the Reds claimed victory in the Merseyside Derby.
Pickford was enjoying himself in the first half as Liverpool failed to get past Everton's deep defensive line. The England keeper even had time to let out a cheeky wink after a bit of time-wasting which irked some of the home support.
While the scores remained level, it looked like the Everton number one might not be punished for his actions. However, after goals from Andy Robertson and Divock Origi sent the points the way of Jurgen Klopp's side, Alisson got his revenge.
With the clock ticking towards full time and Liverpool two goals to the good, Alisson claimed a ball in the Liverpool box. He then made a point of making an exaggerated fall to the ground to eat up some extra seconds, just as his opposite number had done in the first half.
Klopp pointed to the visitors' disruption after the game, telling BBC Sport "We expected it [Everton's tactics] but we didn't react well. It's difficult.
"Each ball Jordan Pickford has he takes five minutes so we couldn't gain rhythm which you need to break down a low block," he continued. "We expected them to do it."
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Liverpool's victory was needed, after Manchester City ramped up the pressure in the title race on Saturday. Pep Guardiola's side temporarily moved four points clear with their 5-1 victory over Watford, but Klopp's men have now brought the gap back down to one.
"We stayed really cool and calm," the manager added, before praising the impact of his substitutes. "The changes helped, Fresh players, different formation. It made it difficult for the opposition."
Everton's defeat, meanwhile, left Lampard's side in the bottom three and at real risk of relegation. Burnley's victory over Wolves in the earlier kick-off sent the Clarets up to 17th, though Everton have a game in hand and fellow strugglers Leeds United still aren't out of the woods.
"[The position] will be talked about, but we had to assume Burnley would win today," Lampard told BBC Sport. The former Chelsea boss said "If we get the first goal, the game feels different," and suggested his team delivered well on their gameplan.
"I thought we played well," he said. The gameplan was understanding they are one of the best teams in the world, with what they are doing to other teams. We wanted to be disciplined and to create chances."
However, the defeat meant Everton still have the worst away record in the league. They haven't won on the road since August, and are yet to pick up an away point since Lampard took over.