Here are the line-ups for the game at the wonderfully named Montgomery Waters Meadow.

They're out on the pitch and raring to go.

Shrewsbury XI: Henderson, Godfrey, Sadler, Beckles, Whalley, Ogogo, C.Morris, Bolton, Nolan, Nsiala, Rodman.

Subs: MacGillivrary, Lowe, Dodds, Gnahoua, John-Lewis, B.Morris, Payne.

West Ham XI: Hart, Burke, Rice, Reid, Ogbonna, Masuaku, Kouyate, Obiang, Cullen, Hernandez, Ayew.

Subs: Adrian, Neufville, Quina, Makasi, Samuelsen, Haksabanovic, Martinez

Iwan Roberts
Former Wales striker on BBC One Wales

Great belief, great desire, great spirit. Never gave up and thought they couldn't get back into the game. Yes they left it late but they kept plugging away.

The magic of the cup.

I love the fact Michael Flynn has taken off his big coat and now has on a posh cardigan, shirt and tie. He knows the cameras will be all over him...

Alistair Bruce-Ball
BBC Radio 5 live

Newport deserve this win.

McCoulsky only turned 21 yesterday. He has just extended his loan and he is now Newport County's hero.

It is very feisty at the end of this game.

Image source, Reuters

Robbie Willmott has now gone off - a change to waste time.

The ball is in the corner of the pitch at the Leeds end. This is going to happen... a shock ladies and gents...

Rodney Parade is spinning off the planet right now.

This club has not reached round four since 1979. They have a couple of minutes to hang on and they have the ball deep in the Leeds half.

John Hartson
Former Wales striker on 5 Live

What a substitution!

And what a header from McCoulsky. He has buried that header past Lonergan.

Newport have got to hold on now.

Outstanding from the Exhiles!

Image source, Reuters

I mean, what on earth is happening here.

Robbie Willmott, who has been immense for Newport, is showing referee Mike Dean his shirt. It would appear he is pointing to blood.

Dean consults his assistant, turns and gets the red out for Leeds sub Samuel Saiz.

Truly odd.

This is a great finish now as the home side press for glory.

Paul Hayes comes on for his Newport debut. The 34-year-old has over 500 career appearances and he wants to make his name, shooting from all of 45 yards on the volley. It's a few feet over. Good hit and good on him for having a go.

As Pierre-Michel Lasogga shoots wide from distance, here's the image of that equaliser. The body language of Conor Shaughnessy (furthest right) is that of a man who knows he's in trouble.

Image source, Getty Images

BBC One

Image source, Getty Images

BBC One's coverage for Shrewsbury v West Ham is now up and running - you an also watch that game at the top of this page.

Padraig Amond had the chance for FA Cup glory. He plants a header straight at the keeper from eight yards. In truth the ball was looping at him and it was hard to generate any power.

Image source, .

Newport deserve their parity.

As you can see, they have enjoyed the better of the territory with 30% of the play in the Leeds final third.

In addition, if we look at the average positions players are taking up, they have been higher up the field in pressing throughout this game.

Image source, .

Newport fancy this as Frank Nouble gets up to head over the bar. Rodney Parade laced with atmosphere now.

John Hartson
Former Wales striker on 5 Live

It was a great ball in from Nouble.

It's an own goal! Shaughnessy's had a really good game for Leeds but McCoulsky's run has caused panic in the Leeds penalty area.

It's all Newport pressing now.

Image source, Reuters

Michael Pearlman
BBC Wales Sport at Rodney Parade

What. A. Moment. What a noise.

Iwan Roberts
Former Wales striker on BBC One Wales

Newport have given their manager everything.

As a defender you hate defending those. If you don't make good contact it ends up in the net.

Watch the closing stages on BBC One Wales by clicking here, then press play at the top of the page.