Ally McCoist
Former Rangers striker on TNT Sports

David Alaba goes down too early. Bukayo Saka is delighted to see him go down to ground. A good save, but one you expect Thibaut Courtois to make.

Bukayo Saka is looking lively for Arsenal and he skips a challenge on the edge of the box before firing off a shot that Thibaut Courtois pushes behind.

Decent spell from Arsenal here.

Matthew Upson
Former Arsenal and Brighton defender on BBC Radio 5 Live

That was a brilliant effort from Bukayo Saka, right foot, strikes it cleanly.

What a start to this game.

An Arsenal goal would really quieten the home fans and they are not far off to getting that as Bukayo Saka fizzes an effort across the face of goal.

Thibaut Courtois certainly looked concerned enough by that effort.

Leon Goretzka gets a telling off from the referee for a late tackle on Marcus Thuram.

Going to be a very lively game and what's not to love about that?!

Matthew Upson
Former Arsenal and Brighton defender on BBC Radio 5 Live

That could've been a different colour card. David Alaba misses the ball and launches in.

If his foot a bit higher, he's off the pitch.

It's a crazy decision.

Image source, Getty Images

A yellow card already for Real Madrid as David Alaba slides in recklessly on Bukayo Saka.

Real are determined to get in the faces of the Arsenal players and unsettle them.

What a great start this has been for Bayern as Harry Kane spreads the play wide right to Michael Olise. He finds Thomas Muller and his shot is saved relatively easily by Yann Sommer.

Ally McCoist
Former Rangers striker on TNT Sports

Image source, Getty Images

He [Kylian Mbappe] knew right away. What a show of intent and a positive statement.

Why is he in that offside position? That's a strange one. He was looking straight across the line.

Oooh, the ball is in the back of the Arsenal net but relief for the away fans as the offside flag goes up quickly.

Kylian Mbappe, standing way offside, chests in Vinícius Júnior's cross.

That is stunning from Bayern as Thomas Muller tees up Michael Olise inside the box and Olise's strike is well blocked by Benjamin Pavard. Looked to be destined for the bottom corner.

Huge concern for Inter here as Nicolo Barella is down in a lot of pain after twisting his ankle.

Alex Howell
BBC football news reporter at the Santiago Bernabeu

This atmosphere is excellent as the teams come out for kick-off.

The fan display is superb and the Madrid fans are bouncing.

Mikel Arteta says that he has prepared his team to come out to win but they're going to have to be prepared for a fast start from Madrid.

Image source, BBC Sport

Brave goalkeeping from Jonas Urbig to dive at the feet of Marcus Thuram and gather the ball before the striker could make it 1-0.

As expected, the atmosphere in the San Siro is absolutely incredible as the fans sang along to the Champions League anthem.

We've all done it!

Here we go then! Who will reach the semi-finals?

We are under way in Milan and will be soon in Madrid.

Matthew Upson
Former Arsenal and Brighton defender on BBC Radio 5 Live

Arsenal, to get through this game safely, have to get through the first five or 10 minutes. I think it could be absolutely electric in here with the hype around this game.

It could be super fast from the start and Arsenal have to be ready.

Ian Dennis
BBC Radio 5 Live senior football reporter at the Bernabeu

Image source, Getty Images

Real Madrid with the narrative of the “Remontada” has certainly created a lot of excitement amidst the expectation.

However, it’s worth highlighting that Arsenal haven’t lost a match by a three-goal margin in 703 days!

Also, don’t forget Real Madrid have conceded 64 goals this season… the most under the reign of Carlo Ancelotti.

The Real Madrid fans are doing their part here. A huge Tifo has been unveiled while they are drowning out the sounds of the Arsenal fans with a huge amount of noise.

The players are ready to step out onto the pitch. What an atmosphere will greet them.