Liverpool boss Jurgen Klopp has admitted that Divock Origi's injury left a shadow over his side's emphatic Merseyside derby victory.
The Reds ran riot as goals from Origi, Mamadou Sakho, Philippe Coutinho and Daniel Sturridge separated the two sides.
It was one of Liverpool's best all-round performances of the campaign, but Klopp has admitted that he failed to enjoy the game's entirety.
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And that's because striker Origi was removed from the field of play on a stretcher following a horror tackle from Everton defender Ramiro Funes Mori.
The centre-back was rightly dismissed, but that didn't exactly make Klopp feel any better about the incident.
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Despite admitting that it spoiled his evening, the German coach revealed that Origi was smiling when he visited him in the medical room.
The Liverpool chief stated: “It is a bit of a shadow on the game.
“Usually after a 4-0 I can't keep the smile off my face but we have to see what happens.
“We have to wait for an assessment.
“Everyone who saw the pictures thought it was broken but it is not.
“I went to the medical room and saw him smiling.
“The ankle is twisted so we have to wait to see what happens to the ligaments.”
It's safe to say, then, that Liverpool and Belgium fans will now be hoping that Origi isn't out for a lengthy period of time.
Carragher has his say
Following the game, Reds legend Jamie Carragher hit out at the Everton man, claiming that his actions were 'embarrassing'.
As Mori left the pitch, he opted to kiss the Everton badge, but Carragher certainly wasn't impressed with his behaviour.
"He has let himself down with the challenge," he said, as per Sky Sports.
"It happens in football. I've made bad challenges and other players have made bad challenges, but going off the pitch he was kissing his badge to the Everton fans.
"I was made up he went off in some ways because it helped Liverpool get more goals, but why was he kissing the badge?
"Number one, he has only been here for two minutes and number two, why is he playing to the crowd because he has injured a Liverpool player? Are they going to be happy with that?
"They were getting battered in the game and he's now going to miss the biggest game of the season when they've got Jagielka out.
"It's embarrassing. What is he doing? Everton fans won't fall for that nonsense.
"It was the only challenge anyone put in by the way, but it was a bad one."
Despite Origi's injury, it was a great night for Liverpool, who continue to prove their credentials under Klopp's regime. By no means are they the finished article, but the former Borussia Dortmund coach is slowly but surely getting things right on Merseyside.
Securing Europa League success this season will truly make it a fine debut campaign on English soil for Klopp, but his side will be well aware that they can't rest on their laurels in the pursuit of success.
Liverpool fans: what did you make of the challenge on Origi? Have your say below!