Sam Allardyce labelled Jurgen Klopp as a "soft German", but judging by the Liverpool manager's antics last night, we fear what the Sunderland boss considers to be a hard German.
According to the Guardian, Klopp got himself so wound up over Jermaine Lens' horror tackle on Mamadou Sakho, a police officer felt obliged to intervene to suggest he calm himself down.
Lens was shown a yellow card for the incident, but Klopp was adamant it should have been red. He took his frustration out on the Sunderland bench when a policeman, who was present on the touchline, gave him a warning over his aggressive behaviour.
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Allardyce admitted after the game that there had been "some foul and abusive language" thrown towards his staff but shrugged off any suggestion that the argument continued beyond the touchline.
However, Klopp turned down the opportunity to apologise for his tirade in his post-match press conference.
Sorry, not sorry
"I am not too sorry,” Klopp said. “Please, it was a foul. Of course, I was angry. For me, that is a red card, finished.
"So my staff were emotional, the staff of Sunderland were emotional but, if you look on your ticket, that is included. If nothing happens on the pitch, you can watch the bench. But it is over and Mamadou Sakho is OK.”
Liverpool sealed a 1-0 victory thanks to Christian Benteke's goal in the 46th minute, taking them within nine points of Premier League leaders Arsenal as we head into the new year.
Two wins on the bounce, including a victory over Leicester City, has got fans hopeful of a late surge up the table, but Klopp doesn't want his players to get carried away.
He said: “We will be celebrating the whole way here to the plane and then we fly home and go to bed. The best teams in the league have nine points more than we have, so it is not that much. Everyone needs a bit of luck and then we will see. We are not in wonderland – but we deserved to win.”