Suddenly, Liverpool are full of confidence. Nathaniel Clyne charges forward and breaks into the box but after being found by a flick from Adam Lallana his shot is blocked before James Milner's follow-up suffers a similar fate. Amazing what a goal can do.

Mark Lawrenson
Former Liverpool defender on BBC Radio 5 live

Image source, Getty Images

"They got caught at the back. Bender could not keep up with Origi and he does brilliantly, with his pace and power."

Liverpool simply cannot keep hold of the ball. Their inability to do so is allowing the home side to nick possession and exploit space. Pierre-Emerick Aubameyang - not a man you want to encourage to shoot - is given a chance to do just that but his curling effort is saved.

Dortmund come again through Henrikh Mkhitaryan, who is able to drive forward into the Liverpool half as the visiting defence backs off. His shot is low but wide of the post. Worrying moments for the Reds.

Chris Ballett: Liverpool have begun like a Year 9 team who are playing Year 11: sit deep, win ball occasionally, panic, lose ball, repeat.  

Mark Lawrenson
Former Liverpool defender on BBC Radio 5 live

"Dejan Lovren got caught and Liverpool got away with it there."

Liverpool need to cut out the mistakes, though. Lovren gifts the ball to Aubameyang, who drives into the box but fails to find Marco Reus in the box as Sakho rallies to block.

Image source, Getty Images

Pierre-Emerick Aubameyang's first real involvement in the game sees him strike a free-kick that deflects past the post. James Milner is well-placed to clear the resulting corner.

Klopp will be very happy with this. Dortmund have had the best chances, but they are few and far between.

There's more pressing than a cider factory. Both teams are putting a shift in to try and get the upper hand. Divock Origi shows strength to win his side a corner, which Weidenfeller punches clear and Alberto Moreno fires back but well over the bar.

Alex Johnson: Sakho baffles me. One moment you think he's world class, another moment he looks like he belongs in the Championship.

Wesley: Sakho reminds me of a mix between bambi and dumbo, but it somehow works.  

Mark Lawrenson
Former Liverpool defender on BBC Radio 5 live

Image source, Getty Images

"He had to score. It was an absolute free header. Either side of the goalkeeper and that was Liverpool 1-0."

Image source, Reuters

Nathaniel Clyne charges into Dortmund territory and is fouled by Marco Reus. It gives Liverpool a potentially threatening free-kick.

It is indeed threatening as James Milner's delivery finds the unmarked Dejan Lovren, but he can only head the ball straight into the ground, making it is easy for Roman Weidenfeller to block and then gather. The keeper takes a whack, which spills a bit of claret, but he is OK to continue.

Lovren should have scored, though.

Mark Lawrenson
Former Liverpool defender on BBC Radio 5 live

"Liverpool fell asleep. Sakho just threw himself at the ball and managed to clear it, otherwise that was 1-0."

Image source, Getty Images

What a good block from Mamadou Sakho. 

A patient period of play from the home side comes to a conclusion with a quick move that opens the away defence up. Julian Wiegl finds Marcel Schmelzer wide left and his low cross looks to have set up Henrikh Mkhitaryan for a certain goal until Sakho dives in to block the shot.

Mark Lawrenson
Former Liverpool defender on BBC Radio 5 live

Image source, PA

"Liverpool need to be careful in their own half playing too much intricate football. There is nothing wrong with knocking it long."

Danger for Liverpool. Dortmund have a free-kick wide right in the Liverpool half.

Gonzalo Castro's delivery is poor but James Milner cannot clear properly, allowing Marco Reus to flash a shot across goal and wide.

Ash: With Sakho in defence I gravely fear for our chances. I hope he puts in the clumsy-looking effective performance tonight.

Himanshu Singh: Liverpool look nervous at the back  

Liverpool are pressing well, illustrated by James Milner charging down Lukas Piszczek in his own half.

Soon after, Dortmund break quick and look to get the ball ion the box for three onrushing forwards but the pass is just a little heavy and allows the Reds to clear.

Mark Lawrenson
Former Liverpool defender on BBC Radio 5 live

"Stupid yellow from Can. The opposition player was 20 yards inside his own half. Daft."