Here come the players, emerging from the tunnel accompanied by pyro. Hi-Ho Silver Lining. Cracking atmos.

The customary pre-match light show has begun at Molineux. It's a bit like the sensory class I take my son to, only without the song about a caterpillar.

Manchester City manager Pep Guardiola speaking during his press conference: “All around Europe there is VAR. Here there is not. I don’t like to win in that way. I am sorry.”

Just to pop back to south Wales for a moment, have at look at these interesting words from Pep Guardiola...

Wolves legend Steve Bull on BBC One: "We've not had days like these in many, many years. The fans will get behind us and we'll give it a good go. It's about taking the game to Manchester United - if we sit back then they'll be all over us.

"We've been in the doldrums for many years. The chairman wants one thing - a top four place."

Alan Shearer
Former England captain on BBC One

Raul Jimenez has been a focal point for them because a lot of the times away from home against the big teams they have looked to him and Jota to get them out of trouble. They get men behind the ball and then look to catch you on the break with him and Jota.

Steve Bull is part of the BBC team tonight. He's on the touchline, on the opposite side of the ground from the stand that carries his name. He looks like he could still play.

Phil, my challenge to you is to acquire one of those coats, put it on and take a selfie.

Phil McNulty
BBC Sport chief football writer at Molineux

Wolverhampton has been drenched by a downpour for hours before kick-off and there is no sign of a let up as the teams warm up.

One corner of Molineux is open to the elements and the supporters there have been given yellow plastic waterproof coats to at least offer some protection - fear they may be fighting a losing battle. It's horrendous.

Alex Scott
Ex-Arsenal Ladies & England international on Football Focus

I have been so impressed with Matt Doherty in the cup competitions and in the Premier Legaue. He is so consistent, and he delivers in big moments. He is one of their most attacking players, he gets the ball and drives and arrives in the space at the right time.

Alan Shearer
Former England captain on BBC One

Wolves have taken points off the "big six" other than Liverpool, but they did knock the Reds out of the cup.

They will make it extremely tough for Man Utd.

I'm not sure I agree with this idea that if there's VAR at one game, it should be at another. Each match is self-contained, so on any particular game, it's the same for both sides.

Anyway, to Molineux...

Alan Shearer
Former England captain on BBC One

It is very wrong and very unfair. Swansea's stadium could have been equipped for VAR, they were a Premier League team not long ago and they will feel hard done by tonight and rightly so

Neil: VAR in games is either for all games or for none , this evening a team were knocked out of the FA Cup because at there ground it was not used , but if they had played at there opponents it would have been.

I'd agree that Sterling didn't dive. I'd also say that he didn't do a great deal to stay on his feet.

Liz Tray: Extremely unfair to suggest Sterling dived, he did not. He didn't appeal for the penalty for a single second. There's always an agenda with him, and it's not that hard to see. People reveal themselves.

Image source, BBC Sport

Nuno Espirito Santo makes one change to the Wolves team that drew 1-1 at Chelsea in the Premier League last weekend.

John Ruddy, who has played every minute of Wanderers’ FA Cup run so far, replaces Rui Patricio in goal.

Wolves XI: Ruddy, Saiss, Coady, Boly, Doherty, Dendoncker, Moutinho, Neves, Jonny, Jimenez, Jota

Subs: Bennett, Cavaleiro, Costa, Gibbs-White, Vinagre, Norris, Traore

Image source, BBC Sport

Ole Gunnar Solskjaer makes four changes to the United side that lost 2-0 to Arsenal at the Emirates Stadium.

Sergio Romero replaces David De Gea in goal, while Jesse Lingard, Ander Herrera and Anthony Martial come in for Ashley Young, Fred and Romelu Lukaku.

Man Utd XI: Romero, Dalot, Lindelof, Smalling, Shaw, Herrera, Pogba, Matic, Lingard, Rashford, Martial

Subs: De Gea, Jones, Mata, Pereira, Rojo, Fred, McTominay

Manchester City matchwinner Sergio Aguero, speaking to BT Sport: "Sometimes these comebacks happen, it is important that we've qualified for the semi-finals, so we're happy.

"We always believed it would come, always we fight."

Image source, PA

BBC Radio 5 Live

Former FA Cup winner Glen Johnson: "It's a potential banana skin for United. Wolves have performed well against most of the top six. United will have to take it seriously but I'm sure they will do."

"I haven't seen a great deal of Wolves but you don't have to see all their games to know how they're doing."

As a reminder, that Wolves-Manchester United game is live on BBC One. Coverage starts at 19:30. You don't need a telly, though. We'll have all of those glorious pictures right here.