Pernille Harder comes on for Bayern Munich. She scored a hat-trick when these sides met last year.

She replaces Jovana Damnjanovic.

Good reactions from Maria Grohs.

Alessia Russo has a crack from distance and Grohs has to move quickly to her left to avoid being caught off guard.

Alessia Russo manages to get a shot away but doesn't cause any problems for Maria Grohs.

Russo's effort lacks power.

Bayern have certainly improved. They're looking so much more creative than they were before the break.

Image source, Getty Images

Lianne Sanderson
Former Arsenal forward on Disney+

Positive for Bayern. They had to do something because the first half was nowhere near the standards of Bayern Munich.

Klara Buhl swings the free kick towards the back post but Beth Mead heads it clear.

Bayern Munich have been better since the restart. Jovana Damnjanovic is brought down on the area and the hosts have a free kick.

Arsenal get the ball rolling for the second half.

Fara Williams
Former Arsenal midfielder on Disney+

It's a brilliant strike from Mariona Caldentey. She has been in the middle of the park controlling things.

Once she sees the goal open up, she likes to strike from those distances. Caldentey will join from midfield and score those goals for fun.

Image source, Getty Images

Barcelona are beating Leuven 1-0 at the break in their game, thanks to Alexia Putellas scoring from the penalty spot in first-half stoppage time.

Three more games take place at 20:00 GMT:

• Atletico Madrid v Juventus
• Manchester United v Paris St-Germain
• Benfica v Twente

Bayern had more possession - 57.1% vs 42.9%, but that's not what matters.

Two shots to Arsenal's nine, one on target to the Gunners' four.

Oh, and no goals to Arsenal's two.

The hosts haven't found their groove.

Lianne Sanderson
Former Arsenal forward on Disney+

Excellent performance from Renee Slegers' side. I think it's been brilliant from Arsenal, but for Bayern Munich, they need to make some tactical changes.

Overall, Arsenal have been excellent in defence and in attack.

No added time whatsoever. Arsenal lead 2-0 at the break.

The visitors have been excellent, with their high press causing all sorts of problems in the final third.

Image source, Getty Images

The ball is chipped over to Momoko Tanikawa behind the Arsenal back line but she's a long way behind and the flag is up.

That's the closest Bayern have come to threatening for a while.

Caitlin Foord drills a low effort towards the near post from the edge of the area, but it goes wide.

Should she have slotted it across to a teammate instead? Maria Grohs seemed ot have it covered.

Bayern manage to build up a period of sustained possession, but they can't get the ball out of their own half.

This has been an excellent display from Renee Slegers' side.

Lianne Sanderson
Former Arsenal forward on Disney+

It has been a really complete performance from Arsenal and it has been difficult for Bayern.

They need someone who can put their foot on the ball in the midfield area.

Image source, Getty Images

Beth Mead and Katie McCabe knock the ball between themselves as they play a short corner.

Mead drills an expert delivery towards the back post but it's headed behind by Lea Schuller for another corner.

Nothing comes from that one.

Bayern have had the majority of the possession, but they can't get out of their own half.

Arsenal's high press isn't showing any signs of slowing down. They keep looking to win the ball in the final third.