Liverpool have qualified for the Europa League semi-finals with a dramatic fight back to defeat Borussia Dortmund 4-3 at Anfield.
Goals from Origi, Coutinho, Sakho and Lovren helped Klopp triumph in the dying minutes of the game against his former club on Thursday night.
Two quick goals by Henrikh Mkhitaryan in the fifth minute and Pierre-Emerick Aubameyang in the ninth minute half had left Liverpool shocked and on the verge of exit without a fight.
Pressure mounted for the fans as the setback was followed by series of missed chances that left the Anfield faithful frustrated.
The second half started well for Liverpool and the early pressure paid off in the 48th minute through Origi but just when Liverpool thought they were launching a comeback, Marco Reus silenced the home fans with a lovely finish, which left Klopp visibly furious.
Two goals down and three away goals already for Dortmund with less than 30 minutes to play, Liverpool needed three goals without conceding any more goals to win on aggregate, having drawn the first leg 1-1 in Germany.
They made it 3-4 on aggregate in the 66th minute after James Milner played a one-two with Coutinho on the edge of the box, with the Brazilian star guiding home a great strike.
The Brazilian turned the provider of the equalizer in the 77th minutes as he whipped a corner in from the left-hand side with Sturridge managing to do enough to let the ball run past him at the near post!
Former PSG centre-back, Mamadou Sakho was quickest to react and turned home a close-range finish to make it 4-4 on aggregate.
Anfield went wild and they could only pray a complete miracle. One more goal and Liverpool would be in the semis. Both coaches made changes to make the best of the final minutes of the game.
There were four minutes of stoppage time and the pressure got to Schmelzer who picked up a yellow card for petulance, with Dortmund’s tempers flaring after a free-kick was awarded to Liverpool.
The Reds, however, maintained focus and the free-kick was taken short by Milner to Sturridge, with the latter then feeding the former to the right byline. He hung up a lovely cross, with Lovren rising highest at the back post to guide home a thumping header.
It was the 91st minutes and Liverpool had done the unthinkable; fighting back from being 1-3 down to defeat Dortmund 4-3 and qualifying for the semi-final 5-4 on aggregate.
This could go down as one of the greatest nights in Europa League history.