The Reds were held 1-1 by Russian side Spartak Moscow despite dominating the game, boasting 64% possession while unleashing 16 efforts on goal.

And Klopp failed to hide his frustrations towards the end of the game, performing facial theatrics above and beyond what the most loyal of Liverpool fans have come to expect from the German.

Tensions in the dugout appeared to come to a head when Dutch midfielder Gigi Wijnaldum wasted possession in the midfield during the dying embers of the game.

A slow-motion replay of Klopp showed him apoplectic with rage, his jaw jutting out at an almost-impossible angle as he screamed and threw a water bottle in frustration.

“You just know he's angry when he detaches his jaw like that,” said one fan.

Another wrote: “Glad to see I'm not the only person that hits myself in the head when I boil over, I love this man.”

Speaking after the game, former Dortmund coach Klopp called on his side to be more ruthless in front of goal.

“We have to be more clinical - 100%," he said.

"To create all those chances and only score one goal feels average. It was a crazy game.

"What can I say? We created, created and created. Where is the real point for criticism? We tried with all we had. The effort was great."

The result leaves Liverpool second in Group E on two points, behind leaders Sevilla who top the group with four points.