Rachel Corsie
Scotland and Aston Villa defender on BBC Radio 5 Live

It's a shame because it is a great goal from Arsenal. But we have to assume that the technology is right.

Video Assistant Refereepublished at 47 mins

47 mins

Arsenal 1-1 Wolfsburg (agg 3-3)

The goal is ruled out for offside! It's as you were.

That was a marvellous move from Arsenal, culminating in Noelle Maritz scampering down the right and finding Stina Blackstenius in front of goal, who finished emphatically.

It's not to be, though. Maritz is adjudged to have strayed offside.

No changes for either side.

Dominique Janssen misjudges a pass in the opening seconds of this period.

Emma Sanders
BBC Sport at Emirates Stadium

It's been the stark opposite to Arsenal's quarter-final win over Bayern Munich here. That was a blistering start from the Gunners in an intimidating atmosphere.

Tonight it has taken a while to get going both on and off the pitch and Wolfsburg were stronger at the start and the end of the first half.

On chances created, Arsenal have had the better of them and that will give them confidence at half-time.

The players are back out again!

Stina Blackstenius is over the ball for Arsenal, who re-emerged second. A reminder: away goals don't count.

Rachel Corsie
Scotland and Aston Villa defender on BBC Radio 5 Live

Image source, Getty Images

Both managers will be pleased with where the game is.

With that 1-0 lead, Arsenal chose to sit back a little bit towards the end of the half, and we'll see a similar style of play now when they come back out in the second half.

Arsenal just need to be mindful that the one-versus-ne situations in the wide areas could become a problem for them.

Image source, Getty Images

Arsenal's fans will back them to the end.

Image source, Getty Images

What will Leah Williamson have made of that half?

They weren't perfect for Wolfsburg's goal, but you suspect the defender will have been impressed with much of Arsenal's work at the back.

Gilly Flaherty
Former England defender on BBC Radio 5 Live

Arsenal need to get inside, get settled and get feedback. They've just got to be a little wary, as Wolfsburg were growing in confidence there.

If I'm Wolfsburg, I'm telling Jonsdottir to keep on the left hand side and to run at Maritz and Wubben-Moy. You've got to play on the fact that Maritz has a yellow card, and play to the strength of Jonsdottir's pace against Wubben-Moy.

Arsenal need to get composed for the second half.

Image source, Getty Images

We mentioned before this game how vital Alex Popp's return could be for Wolfsburg.

Sure enough, the Germany forward set up their second goal with that header from a free-kick. Keeping Popp quiet could be key to Arsenal's hopes.

Gilly Flaherty
Former England defender on BBC Radio 5 Live

There's no reason for the ball to travel the distance it does [from the free kick for Wolfsburg's goal].

The foul was given away - there was no problem with it, a tactical foul.

But they lose the first ball, and then they lose the second ball.

It's a fantastic finish but they need to mark Roord better than that.

Image source, EPA

Image source, Getty Images

Level in the game and tie at the break of this second leg!

Boos ring out as the half-time whistle sounds, but they're for referee Lina Lehtovaara, who signalled the end of the first period when Arsenal were about to take a free-kick in a promising position.

With forty-five scheduled minutes of this semi-final remaining, we're no nearer knowing who will meet Barcelona in the final. It's been an end-to-end, tense game so far - and if nothing else, Arsenal have avoided behind behind at this point against Wolfsburg for the first time in any of their six games against them.

We mentioned earlier that Sveindis Jane Jonsdottir has hit the top speed of any Wolfsburg player in this season's competition so far.

She shows why with an electric run down the left, beating Noelle Maritz and entering the penalty area before sending a shot straight into the alert Manuela Zinsberger's arms.

In the third minute of the five extra allocated in this half, Arsenal proceed to have a crossing opportunity from a dead ball outside the Wolfsburg penalty area on the right.

There's plenty of jostling inside the penalty area. Wolfsburg concede a corner, which they clear via Merle Frohms' fingertips under her crossbar.

Now Wolfsburg have their tails up.

Rafaelle Souza gives the ball away in a dangerous area and for a second it looks as if Svenja Huth will race clear beyond the halfway line.

Steph Catley expertly rescues the situation with a timely challenge.

Victoria Pelova tries to create danger as Arsenal look to hit back immediately.

Jonas Eidevall immediately signalled to the home supporters to amplify their efforts after that Wolfsburg goal went in.

Emma Sanders
BBC Sport at Emirates Stadium

That goal came from nowhere.

Jill Roord wasn't holding back the celebrations against her former club either.

A real kick in the teeth for Arsenal just before half-time. It's stunned the home supporters.

Image source, Reuters

Noelle Maritz is booked for holding back Alex Popp just beyond the halfway line, stopping Wolfsburg from breaking.