45+4 min In fact it was sparked by a pretty bad foul on Osula on Stansfield, who then started laughing as Osula went after him.

45+3 min An incident involving Osula leads to a shoving match on the touchline. We didn’t see exactly what happened but Osula and Anderson have been booked.

45 min Three minutes of added time. Any chance of three hours?

44 min Iwata’s goal has echoes of Ronnie Radford against Newcastle in 1972. Radford was much further out, but the way the ball sat up and the purity of the strike were pretty similar.

42 min I hope they have the technology to measure the speed at which Iwata’s shot was travelling. It was a belter.

A cross from the left was headed away by the backpedalling Targett beyond the far post. Iwata ran towards the bouncing ball, just outside the area, and lasered it first time into the roof of the net. What a goal!

GOAL! Birmingham 2-2 Newcastle (Iwata 40)

39 min: Chance for Birmingham! Wright, 10 yards out, sidefoots tamely into Pope’s hands after a cutback from Iwata. This is a cracking match.

36 min Willock surges infield and finds Osula on the right side of the box. He chops back onto his left foot and hits a shot that is really well blocked by the sliding Klarer. Newcastle’s wide players, Willock and Osula, have been a constant threat.

35 min I’ve just realised that, on Newcastle’s, second goal, Osula blocked his own shot on the line. He dragged the ball against his standing foot, it looped up and Wilson did the rest. Whether he was offside before that, we don’t yet know.

33 min: Great chance for Stansfield! Anderson runs at Livramento and curls a glorious cross that is headed fractionally wide from six yards by Stansfield. In fact replays show it probably came off his shoulder. He’s normally so clinical; there’s a chance he was unsighted by Krafth jumping in front of him.

32 min: Willock has a goal disallowed He wags his finger but he was well offside when he ran through to knock the ball over Peacock-Farrell.

30 min Newcastle have the game under control for the time being, but you’d imagine there will be a few more momentum shifts before the final whistle.

There’s a lot to unpick with that goal. The move started with a stunning turn on the halfway line by Osula, who eventually had a long-range shot pushed away. Newcastle regained possession and Livramento slid a brilliant low cross that led to the aforementioned scramble and ultimately Wilson’s goal.

The ball would have gone in the net earlier but Osula inadvertently blocked it on the line. He looked offside when he did so, though a) I’m not sure whether it was touched towards goal by a Birmingham or Newcastle player and b) there’s no VAR.

Two goals in five minutes for Newcastle. After an almighty scramble in the box, Wilson stretches high, shorts-rippingly high, to stud the ball into the net from a couple of yards.

GOAL! Birmingham 1-2 Newcastle (Wilson 26)

25 min Stansfield, Birmingham’s star man, turns smartly 20 yards from goal and hits a shot that is too close to Pope.

Callum Wilson barrelled down the left and clipped a superb ball beyond the far post. Osula screwed it back into the six-yard box and Willock poked towards goal with his left foot. The ball was punched away by Peacock-Farrell, whose momentum and taken him behind the goalline, and play continued for a couple of seconds until everyone realised the assistant had signalled it was a goal.

There’s no goalline technology, never mind VAR. With the naked eye it looks incredibly close; my instinct is that it was over the line but I wouldn’t put the farm on it.

GOAL! Birmingham 1-1 Newcastle (Willock 22)

18 min Birmingham are pouncing on Newcastle at every possibility, a bit like Newcastle did to Arsenal on Tuesday. This is a really good game.

15 min: Fine save by Pope! The resulting free-kick is driven beyond the far post and headed back towards Anderson on the edge of the area. He contorts his body to strike a sweet left-footed volley that takes a slight deflection off Burn and is pushed away by the flying Pope. That’s a really good stop.

14 min Burn is booked for pulling back Wright. Birmingham are frustrated that the ref didn’t play the advantage as they had a two-on-two break.

12 min Livramento gets to the byline and cuts the ball back. It’s pushed square along the six-yard line to Wilson, whose early shot is crucially blocked by Klarer.

10 min Newcastle have processed the shock of going behind so early and are starting to dominate the ball.

7 min Osula is fouled on the right wing by Cochrane. Targett’s free-kick is punched away decisively by Peacock-Farrell.

6 min Pope, who isn’t the best with his feet, sprays a pass straight out of play.

4 min Iwata’s pass is intercepted by Willock, who surges 50 yards down the left and curls a dangerous cross – or rather, what would have been a dangerous cross if there was a Newcastle player in the area.

St Andrew’s is going ballistic. It came from a superbly worked corner, won and then taken by Dowell. He drove it deliberately beyond the far post to Anderson, who pulled away and was totally unmarked. Anderson guided a header down towards Laird, six yards out, and he swept a shot that was deflected into the roof of the net by Wilson. Laird’s shot was on target so it’s his goal.

GOAL! Birmingham 1-0 Newcastle (Laird 1)

1 min Peep peep! Birmingham, in blue, kick off from left to right as we watch.

There’s a helluvan atmosphere at St Andrew’s. With five minutes to kick-off, let’s have a peedie reminder of the teams.

Birmingham (4-2-3-1) Peacock-Farrell; Laird, Klarer, Davies, Cochrane; Iwata, Leonard; Wright, Dowell, Anderson; Stansfield.
Substitutes: Allsop, Bielik, Hanley, Sampsted, Harris, Willumsson, Dykes, May, Jutkiewicz.

Newcastle (4-3-3) Pope; Livramento, Krafth, Burn, Targett; Miley, Guimaraes, Longstaff; Osula, Wilson, Willock.
Substitutes: Dubravka, Ruddy, Trippier, Schar, Tonali, Isak, Hall, Murphy, Neave.

Referee Matthew Donohue.

“G’day Rob,” says Chris Paraskevas. “Hope you’re well! “As I’m sat here waiting for my 4:30am coffee to boil, I wonder if the term ‘Birmingham’ brings up the following random access memories for others:

• Peter Enckelman’s immortal St Andrew’s clanger.

• The hit TV show Brum featuring an inquisitive, sentient and borderline fascist self-driving vintage car that solves crimes/runs into people.

• That time Newcastle fielded a ‘Holy Trinity’ of Viduka, Martins and Michael Owen up front at St Andrew’s, breaking records for lack of work ethic as a front three.

“I seriously would pay to see that car bring out the match ball, with its googly eyes, Midlands cheek and self-righteousness…”

For me, I’m sorry to say, the word Birmingham brings to mind Barry Fry’s appendage.

Team news: Nine changes for Newcastle

Today’s FA Cup results

Preamble