Phil McNulty
BBC Sport chief football writer at Emirates Stadium

Arsenal have started very quickly and Liverpool are currently second to everything as the tempo is frantic.

Talking of frantic, Mikel Arteta is flying around as if he is standing on hot coals in his technical area.

10 minutes in and Liverpool have not had a sniff so far.

Arsenal are "absolutely destroying" them, as Thomas Frank would say.

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Liverpool with their Khyber ghee kit on tonight.

All Asian and Middle Eastern readers are currently nodding in agreement.

Looking at the replay, it is actually a superb save from Caoimhin Kelleher, getting the finest of touches on the ball to tip it onto the crossbar.

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Inches from the opener in the fifth minute.

It's Alexandre Lacazette who carefully lofts a free-kick over the wall and onto to the top of the crossbar.

Chris Sutton
Former Premier League striker on BBC Radio 5 Live

I can't wait for this. Arsenal showed resilience, going a man down in the first leg. It would be a waste if they didn't go on and win tonight. But which Liverpool team are going to turn up?

Arsenal have started really well and Bukayo Saka is tripped bang on the edge of the box by Andrew Robertson.

This free-kick is dead centre...

The crowd are really rocking the Emirates tonight.

Bukayo Saka swings in another Arsenal corner which Virgil van Dijk nods away.

Arsenal have a corner in the second minute but it's a poor one from Martin Odegaard, cleared at the near post.

Who's going to Wembley? Let's find out.

Under way at the Emirates.

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Tom McCarron: Unfortunately, I can't see anything but Arsenal progressing to the final tonight. I don't think we'll score more than one and we will definitely concede so their home advantage will be too much.

Phil McNulty
BBC Sport chief football writer at Emirates Stadium

Hope AC/DC are on royalties from football grounds around the world.

"Thunderstruck" seems to be the song of choice for major tournaments and also at so many grounds to build up the pre-match atmosphere.

Anfield is one of many and we've just had a good, loud blast here at Emirates Stadium,

Don Hutchison
Ex-Liverpool midfielder on BBC Radio 5 Live

I thought Mikel Arteta's stance on Aubameyang was the right one. I think he set a good example to the fantastic young players in the Arsenal dressing room. Aubameyang crossed the line and he had to show his authority. Results have been kind so everything is win-win for the manager. Now it leaves Aubameyang thinking 'have I got a future at Arsenal? I can't see a way back for him.

Arsenal boss Mikel Arteta talking to Sky Sports:

"There are players who haven't had any training sessions, we are pushing the players. We didn't have anyone else.

"Thomas Partey has really shown his commitment, he landed at midtable and wanted to be involved."

Liverpool manager Jurgen Klopp:

"For us Kaide Gordon is a right winger, he did exceptionally well in training. Caoimhin Kelleher has played all the time in the competition, just not last time because we needed to give Alisson some game.

"Arsenal have a very offensive line up. Both teams want to win, we have to be positive and offensive."

Arsenal

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Arsenal's recent record against Liverpool is rather awful.

The Gunners have won just one of their last 17 matches against Liverpool in all competitions (D8 L8) and have failed to score in their last four against the Reds.

Arsenal

The Football Association is looking into a yellow card received by an Arsenal player in a Premier League match earlier this season following reports of irregular betting patterns.

No details have been revealed over who the player is.

But The Athletic reports, external that bookmakers contacted the FA after unusual betting patterns were spotted.

An FA spokesperson said: "The FA is aware of the matter in question and is looking into it."

It is understood that the matter is not under formal investigation by the FA.

Arsenal

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Will he stay or will he go?

Saudi Arabian side Al-Nassr have made an offer to take Arsenal outcast Pierre-Emerick Aubameyang on loan.

Striker Aubameyang has not played for the Gunners since 6 December and was stripped of the club captaincy after a disciplinary breach the following week.

He has returned to London having been sent home early from the Africa Cup of Nations after scans revealed "heart lesions" following a bout of Covid.

Al-Nassr want Aubameyang, 32, on loan with the option of a permanent deal.

Arsenal

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There were a few question marks on whether tonight's game would go ahead, following Arsenal's postponement at the weekend.

Mikel Arteta says the club "did the right thing" when requesting the postponement of last weekend's north London derby against Tottenham.

Sunday's game was called off because Arsenal did not have enough players.

Tottenham boss Antonio Conte called the decision "strange" and said matches should only be called off because of Covid-19 cases and not for injuries or players on international duty.

"We will defend our club with teeth and nails," said Arteta.

Arteta added: "We're not going to get anybody damaging our name or trying to lie about things that haven't occurred.

"We will make mistakes, we will put our hands up but we will defend our club in a really strong way.

"We didn't have the players necessary to put out a squad available to compete in a Premier League match, that is 100% guaranteed."

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Liverpool

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Under Jurgen Klopp, Liverpool have scored more goals against Arsenal in all competitions (43) than they have against any other opponent.