Origi stunned Anfield and sent the home supporters into raptures when he took advantage of Jordan Pickford’s bizarre error to head in deep into stoppage time.
It was a remarkable moment for the substitute, who has seen his opportunities dwindle in recent years, but this made the moment even more special.
And given the nature of his goal, it was no surprise to see Klopp surge towards Alisson to celebrate before the final whistle was blown, as the manager saw his emotions get the better of him.
“I have to apologise immediately. I did after the game to Marco Silva because I didn’t want to be disrespectful,” he told Sky Sports.
Wow!!! Jurgen Klopp charges onto the pitch to celebrate with Alisson! ?
Liverpool score a bizzare LATE goal to win the Merseyside derby 1-0. Simply incredible!? pic.twitter.com/7NM4P0pltV
— Soccer AM (@SoccerAM) December 2, 2018
“I couldn’t stop myself. The game was as we expected: unbelievably tense, hard for both teams, goalkeepers had outstanding performances, and in the end a very weird goal.
“We got it, and we take it. It’s a brilliant night.
“We had similar situations where we scored late, but today with the intensity, I cannot hide it.
“That’s how it is. I’m not sure what the FA has to do in situations like that, but I have to wait for it!
“[But] that’s not the story of the game, it was the last situation of the game pretty much.
“Both teams gave an unbelievable fight, the clearest fight since we’ve played Everton.
“Today both teams tried to really play football; no harsh things. It was the game I expected.”
Silva, speaking to reporters at his post-match press conference however, claimed he “didn’t see” Klopp in the aftermath of Origi’s goal.
The apology was necessary, of course, but it would be a difficult to argue that the finish didn’t warrant that reaction from Klopp, the players and the Kop.