Owen Hargreaves
Former Manchester United midfielder on TNT Sports

He's forty-odd years old [Manuel Neuer] and he's not extended his contract but he's been the difference in this game for sure.

Image source, Getty Images

Only against Brighton (0.01) have Arsenal created a lower xG total in the opening 45 minutes of a match this season than their 0.09 against Sporting this evening.

Part of the problem might be that they've struggled to get Viktor Gyokeres into the game. The big striker had a game-low nine touches in touches in the first half.

Image source, Opta

Phil McNulty
BBC Sport chief football writer at Santiago Bernabeu

Bayern Munich keeper Manuel Neuer has made three important saves but Vincent Kompany's side have been vastly superior to Real Madrid.

Harry Kane had a passing involvement in the goal but has been very quiet. Is he fully fit?

Real Madrid can consider themselves fortunate to be just the one goal behind at half-time.

Though the hosts have registered more shots on target than Bayern Munich (four v three), the Bundesliga side have registered an xG rating 1.89.

Could those misses from Dayot Upamecano and Serge Gnabry come back to bite Bayern?

Matt Upson
Former Arsenal defender on BBC Radio 5 Live at José Alvalade Stadium

It's been relatively cagey and a little bit reserved. Neither team really got the upper hand and it's fairly even at the moment.

Goalless at the break but Maxi Araujo has been a bright spark for Sporting, marauding up and down the left flank for the home side.

Image source, Getty Images

The referee didn't fancy seeing much more of this as the whistle goes for half-time the moment the clock hit 45 minutes.

Image source, Getty Images

Alex Howell
BBC Sport Arsenal reporter at José Alvalade Stadium

Mikel Arteta is trying to bring some intensity to how Arsenal defend when Sporting have the ball near their penalty area.

He just ran along his technical area to encourage Ben White and Noni Madueke to press the ball.

That's that then.

A thrilling first half with chances at both ends but Bayern lead at the break.

Their only complaint will perhaps be that it's not more than one goal.

Image source, Getty Images

Real Madrid are appealing for a penalty but referee Michael Oliver gives it the other way.

Dayot Upamecano makes the challenge on Vinicius Jr in the corner of the penalty box but the decision is handball after the Brazilian tried to take things into his own hands, (literally).

Matt Upson
Former Arsenal defender on BBC Radio 5 Live at José Alvalade Stadium

Sporting look like they have more edge to them in open-play. Arsenal look better from set-plays but Sporting look more dangerous.

It's a big effort from the Sporting team at the moment.

Arsenal have their first shot on target with 42 minutes on the clock but it is a pretty tame effort from Martin Odegaard, straight at the goalkeeper.

The stats initially showed Luis Suarez as being booked for dissent but that's now disappeared, leaving Hidemasa Morita as the only player booked so far in this match.

Steve McManaman
Former Real Madrid winger on TNT Sports

There's a huge amount of experience on the bench for Real Madrid to turn to which is why the selection tonight really surprised me.

Image source, Getty Images

That was Serge Gnabry's fifth assist of this Champions League campaign - the most of any player.

It was also Luis Diaz's fifth goal of the campaign.

Steve McManaman
Former Real Madrid winger on TNT Sports

A gorgeous finish.

Real Madrid were cut open with ruthless efficiency from the Germans. Harry Kane to Serge Gnabry and then what a pass that was and Luis Diaz isn't missing from that.