A loud cheer goes up as Cristiano Ronaldo gets his first touch of the ball on his second debut for Manchester United.

The Gunners have started firmly on the front foot.

Phil McNulty
BBC Sport chief football writer at Emirates Stadium

...before the game at least. Big noise inside Emirates Stadium. Mikel Arteta has what people who know about these things call his "game face" on - which means he looks very serious to the point of being a bit miserable.

Jack Grealish finds Bernardo Silva in space on the left but his cross is headed away by Ryan Bertrand.

An early corner for City though, as it's put behind by Wilfred Ndidi.

A big roar as Arsenal got this game under way. The home fans here recognise just how badly they need a win and, ideally, a proper performance here.

Chris Waddle
Ex-England winger on BBC Radio 5 Live

No Wilson for Newcastle is a massive blow. I thought he'd cause problems today, but Joelinton is the man to lead the line.

Here we go then. Six games. Where's the first goal coming from?

Simon Stone
BBC Sport at Old Trafford

Co-chairman Avie Glazer and chief executive Ed Woodward are both here today.

They both played key roles in getting Cristiano Ronaldo to Manchester United from Juventus.

Sir Alex Ferguson made the decisive phone call though. He has just taken his seat.

Chris Waddle
Ex-England winger on BBC Radio 5 Live

I think some of the Manchester United players will struggle to adjust to the hype of the atmosphere. If Newcastle score the first goal, it will be bizarre. It will be interesting, when they get the ball, will they be looking for Ronaldo all the time? All you can say is, 'do what you've been doing, just play your game. Don't get wrapped up in the occasion.'

Newcastle have got to be very disciplined, stick to their game plan, look to hit on the break and for set pieces. If they go a goal down, you fear for them.

Old Trafford is rocking to the tune of "Viva Ronaldo".

Fans are twirling their red and white scarves over their heads.

A real party atmosphere.

An early Newcastle goal will settle them down.

Ashley Williams
Former Wales captain on BBC One

It is definitely must win for Arsenal today. Mikel Arteta is trying to be cool, calm and collected and ask for patience. That is one thing, but when you are in the Emirates and you are bottom of the league and you are playing Norwich. It is not just results, the fans want performances and they are not getting it.

Arsenal

Arsenal manager Mikel Arteta speaking to BBC Final Score: "We certainly need a reaction, we need results, we lost three games and certain things have to be changed. We changed personnel and we changed dynamic for different reasons, let's go for it.

"I cannot ask for anything from the fans, I think it is time for us to give to the fans. Through the years they have been really patient. They have to feel what they have to give the team."

Simon Stone
BBC Sport at Old Trafford

Another famous former Manchester United winger is here to watch Cristiano Ronaldo this afternoon.

Ryan Giggs is also in the directors' box.

Manchester United director Avram Glazer is at Old Trafford today.

Remember those protests last season? No sign of any mutiny in the ranks today.

Simon Stone
BBC Sport at Old Trafford

Manchester United manager Ole Gunnar Solskjaer has told MUTV that Edinson Cavani has suffered 'a little knock' in training, which is why he is not involved today.

Newcastle United

Newcastle manager Steve Bruce: "The situation is what we have to accept and see if we can spoil the party, it is something you have to enjoy and relish the challenge.

"We have done all we can and we have to do better defensively. We have lost our main centre forward in Callum Wilson,"

Chris Waddle
Ex-England winger on BBC Radio 5 Live

I can see him scoring today. He looks totally relaxed and that's the key. He's right up for it, the players will be, the crowd are definitely. The atmosphere is excellent.

Micah Richards
Former England defender on Football Focus

The players that they've brought in, (Martin) Odegaard, (Aaron) Ramsdale, (Albert Sambi) Lokonga, they are players for the future, and when you're trying to have a balance with a squad, Man City, Man Utd, Liverpool and Chelsea, are getting better. Arsenal are trying to catch up. They've just allowed the gap to get too big.