Watch in-play highlights & listen on BBC Radio 5 Live & online
Superb team goal finished by Aubameyang for Arsenal lead, Aubameyang's breakaway for second
Arsenal into record 21st Cup final - will face Manchester United or Chelsea, who meet in Sunday's semi
Get involved via #bbcfacup
Tweet #bbcfootball or text 81111 (UK only)
Is that Luiz in a back 4 with Maitland-Niles as a centre-mid ahead of them? Big, big call. The pessimist in me says AMN tries too hard to prove himself to Arteta and gets sent off.
Adam
Arsenal v Manchester City (19:45 BST)
And here's how City reached Wembley again...
Watch every goal from Man City's FA Cup journey so far
Tweet #bbcfootball or text 81111 (UK only)
David Huggan, Sydney: Amazing that the FA Cup still features the last 4 winners of the trophy. It proves the big clubs still take this wonderful competition seriously.
Arsenal v Manchester City (19:45 BST)
Phil McNulty
BBC Sport chief football writer at Wembley
The atmosphere here at a deserted Wembley could not be further from the usual FA Cup semi-final occasion - but Arsenal manager Mikel Arteta and his Manchester City counterpart Pep Guardiola have both picked sides befitting the occasion.
Manchester City won the domestic treble last season and are still hoping to add the FA Cup and Champions League to the League Cup won earlier this season.
Arteta is formulating his plans for the future as Arsenal manager but this is a chance to make a significant statement against the club he left in December to take over at Emirates Stadium.
Arsenal v Manchester City (19:45 BST)
Manchester City
Manchester City manager Pep Guardiola: "We try to play every game to win, I don't know what system Arsenal will play today but they have been solid and consistent in recent weeks.
"They are a good team spirit, everyone follows the manager and you can see that. It's a beautiful competition - you know better than me."
Arsenal v Manchester City (19:45 BST)
I don't know about where you are but the weather has been rank where I live all day. Got totally and utterly soaked on a long dog walk this morning.
But in reference to my opening entry I can confirm that it is a lovely sunny evening at Wembley. Pep Guardiola is here in jeans and a t-shirt.
Here's how they got here...
Watch every goal from Arsenal's FA Cup journey so far
Arsenal
Arsenal will be guaranteed a Europa League group place if they win the FA Cup - they face Manchester City in the semi-finals on Saturday.
Their win over Liverpool on Wednesday keeps their hopes of qualifying through the league alive - they are three points off sixth place and two below seventh.
Tweet #bbcfootball or text 81111 (UK only)
Andrew The Hinckley Gooner: Big test for Mikel Arteta today. If we can keep a full team on the pitch and not make any stupid defensive errors then we can win
Arsenal v Manchester City (19:45 BST)
Arsenal manager Mikel Arteta left out a few of his big guns against Liverpool, well his biggest gun anyway, and then went on to see his side win.
Anyway, Pierre-Emerick Aubameyang starts at Wembley, he's one of five changes. Also back are Mustafi, Bellerin, Ceballos and Maitand-Niles.
Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
Tweet #bbcfootball or text 81111 (UK only)
Jon Spurling: The fact that I’m feeling oddly confident about tonight‘s game concerns me greatly, and should actually concern all Arsenal fans.
Tweet #bbcfootball or text 81111 (UK only)
Umar: I'm a Manchester United fan but I think Arsenal could snatch a win here
Arsenal v Manchester City (19:45 BST)
City make five changed from the side which beat Bournemouth - in come Garcia, Laporte, De Bruyne, Mahrez and Sterling.
Out go Stones, Otamendi, Fernandinho, B. Silva and Foden.
Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
Arsenal v Man City (19:45 BST)
Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
Arsenal v Man City (19:45 BST)
Chris Sutton
Former Premier League striker on BBC Radio 5 Live
Mikel Arteta has so much to do at Arsenal.
He has a huge job on his hands to make this team serious contenders once again.
An FA Cup this season would help. I don't think they'll make the top seven in the Premier League so they will need the FA Cup to reach Europe - and I do think that would be progress.
#bbcfootball or text us on 81111 (UK Only)
How are you all feeling about this one? As surreal as any in this post-lockdown restart?
Is the trophy more of a priority for Arsenal fans? Let me know.
Arsenal v Manchester City (19:45 BST)
Manchester City have won 10 of their past 12 FA Cup semi-final matches, with their two defeats in that time coming against Arsenal (1932 and 2017).
Arsenal v Manchester City (19:45 BST)
Arsenal are playing in their 30th FA Cup semi-final - no side has played in more. They've reached the final on 20 occasions, which is also a joint record (level with Manchester United for both).
Standing in their way tonight? Oh, only Manchester City...
Arsenal v Manchester City (19:45 BST)
It should be the second week of April, Grand National day preferably.
It should be sunny, it should be at Villa Park. It should certainly be at 3pm.
Image source, Getty ImagesInstead we're at an empty Wembley on a Saturday night in late July for the first FA Cup semi-final of this never-ending season. What on earth is 2020 continuing to do to us all?