Dortmund take the sting out of Liverpool with a period of possession, passing squarely across midfield in search of an opening. Liverpool are disciplined, though, and when the shot does come it is from distance from Nuri Sahin and easily saved by Simon Mignolet.

Mark Lawrenson
Former Liverpool defender on BBC Radio 5 live

Image source, Getty Images

"Roman Weidenfeller made three saves and the first of them was nothing short of world class. Sensational."

Roman Weidenfeller is like a brick wall! Liverpool respond really well to Dortmund's goal with a concerted period of pressure that produces a couple of really good chances. Philippe Coutinho has the best of them with two bites of the cherry in the box, his second opportunity a clear shot from 15 yards, but the big home keeper sticks one hand out to save superbly.

Mark Lawrenson
Former Liverpool defender on BBC Radio 5 live

Image source, Getty Images

"Mats Hummels jumped above Lallana but Lallana was not due to pick him up. I think it should have been Origi and it was the simplest of headers. It is such a poor goal for Liverpool to concede and now it is going to be very interesting."

We are back under way.

It is all going to plan for Liverpool at the moment. The players are back out. Can the Reds see this out? They are going to be forced into a change, though. Jordan Henderson's injury has seemingly ended his night. Joe Allen replaces him. 

Dortmund also make a change as Erik Durm departs to be replaced by former Liverpool midfielder Nuri Sahin.

Image source, Getty Images

Four goals across tonight's four Europa League fixtures. Here are the half-time scores:

Athletic Bilbao 0-0 Sevilla

Borussia Dortmund 0-1 Liverpool

Sporting Braga 0-1 Shakhtar Donetsk

Villarreal 1-1 Sparta Prague

Ash: That has just justified Origi over Sturridge. Pace against this defence. He really should've finished that though.Should be 2-0  

ZyZzyX: I hope Liverpool aren't planning on sitting back all game and inviting pressure. We won't handle it for another 45 mins  

Mark Lawrenson
Former Liverpool defender on BBC Radio 5 live

"I don't think one goal will be enough. Dortmund are great going forward and Liverpool are in too much of a rush to get that second goal."

Frantic end to the half.

However, Liverpool lead at the break. And they will be extremely happy, not only with that but also that Dortmund have not run amok. It has been a classic counter-attacking display. Advantage Jurgen Klopp.

Mark Lawrenson
Former Liverpool defender on BBC Radio 5 live

Image source, Getty Images

"As well as Origi did for the goal, he should have done better there. He almost was not quite sure what to do. He needs a few chances to score the goals."

Image source, Reuters

Huge opportunity for Divock Origi at the end of the half!

The striker holds his run to collect a pass forward and run clear of the home defence. He hesitates, though, allowing Roman Weidenfeller to come out and block.

The keeper is furious - presumably as he thought the Reds striker was offside - and gets a booking for his protests.

Two of the four added minutes are up. Liverpool holding on.

Dejan Lovren comes to his side's rescue with a sliding block to prevent Pierre-Emerick Aubameyang scoring at the back post.

Erik Durm looks to change the picture but his low shot from the edge of the box on the turn is easy for Simon Mignolet.

Image source, Getty Images

Dejan Lovren and Jordan Henderson combine to clear as Dortmund attack down the left. Marcel Schmelzer's cross is headed away by Lovren and then hammered clear by the Reds skipper. Liverpool sitting back now, attempting to see it through to half-time at 1-0.

Adam Lallana into the book. Rightly so as well as he slides in on a Dortmund man with his studs showing.

Good news. Jordan Henderson is OK and returns to the action. Liverpool look to break but Philippe Coutinho's attempted switch from left to right to find Origi is cut out.

Image source, Getty Images

Jordan Henderson is down. Looks like he may have a problem. He heads to the touchline for treatment.

Social Good: Origi over Sturridge has paid off. An away goal in the kitty.  

Paul Walmsley: Liverpool attempting a Leicester: let the opposition have the ball then hammer them on the break.  

Phil Delves: Now hopefully Origi wasn't taking tips from Torres this week...