Steve Hale
Goalkeeping coach on BBC Radio Wiltshire

It's that man Harry McKirdy again.

Great technique on the volley - he really is the man of the moment and the man of the season for Swindon Town.

You have to give him massive credit - it would've been very easy to strike that over but he's controlled it brilliantly.

Steve Hale
Goalkeeping coach on BBC Radio Wiltshire

Brilliant crossfield ball out to Louie Barry.

Harry McKirdy is desperate to get on the end of it but he can't quite get that touch.

The game is really finely balanced.

Harry McKirdy tries to turn around this half in Swindon's favour by trying his luck from distance but it goes wide.

Soon after, Ellis Iandolo hooks a low ball inside the Port Vale box towards McKirdy who can't direct it towards goal in time.

That's better from the hosts.

Jamie Proctor comes in for Port Vale, replacing Ryan Edmondson.

Just under half an hour remains and Vale have sent on their leading goalscorer this term.

Can he make a difference?

Phil Sproson
Former Port Vale captain on BBC Radio Stoke

Good work from Tom Pett again, and a nice run form Nathan Smith inside the box.

He couldn't do anymore - he put a ball across the six-yard box and they just couldn't get a gold shirt on it.

Far better from Vale.

Image source, PA Media

Nathan Smith puts a low ball from inside the Swindon box as Port Vale go on the attack.

But it rolls out before any of his team-mates can work onto it. A waste.

Image source, PA Media

Play resumes after Mandela Egbo and James Wilson receive treatment.

Port Vale clumsily concede a throw-in in Swindon's half soon after.

It's still scrappy, but Port Vale have dominated since the restart.

Play's stopped after a collisiion between Mandela Egbo and James Wilson.

Egbo's clinging his head, Wilson's clinging his back. Looks painful for them both.

Image source, Rex Features

Former Manchester United forward James Wilson's had a quiet match so far, but the Port Vale man bursts into life as the visitors continue their decent start to this half.

On his left foot at the corner of the Swindon box, he fires goalbound but it bobbles wide.

Port Vale are attacking the side of the pitch where their supporters are congregated in this half.

David Worrall sends a free-kick into the Swindon box and Nathan Smith - making his 300th Port Vale appearance - heads wide.

Image source, Getty Images

Right then. The second half is under way.

Can Port Vale get back into this first leg or will Swindon headed to Vale Park with an advantage?

One change for Vale. Harry Charlsey comes off with Jake Taylor taking his place.

Steve Hale
Goalkeeping coach on BBC Radio Wiltshire

Maybe Vale might have a go early in the second half, but it's hard to predict.

The intensity at the start was very high and there was no way either side could keep that up.

You'd expect Port Vale to become a little bit more cagy in their play as the game goes on, as they'll want to make sure they're still in the tie going back to their place.

Phil Sproson
Former Port Vale captain on BBC Radio Stoke

I think Swindon have moved the ball better than Vale

They've been first to the ball, Vale haven't.

Sloppy marking cost the goal - Harry McKirdy's been a thorn in the side, we knew what he'd be like.

Image source, Rex Features

Harry McKirdy's header, with came from Nathan Smith mistakenly putting the ball out for a corner, means Swindon lead Port Vale at the break.

There's some afters between McKirdy and Connor Hall as the whistle is sounded for half-time.

Some needle in this tie.

Two minutes added on to this first half.

Swindon's first corner following Jonny Williams' drive is put out for another corner by Port Vale at the other end.

Eventually Harry McKirdy gets onto it but he fires well wide of the mark.

Steve Hale
Goalkeeping coach on BBC Radio Wiltshire

Great strike from Jonny Williams, though it was not a bad place for Aidan Stone to tip it over the crossbar.

Williams has had a really bright half for Swindon.

Great strike!

Jonny Williams fires from 30 yards out and forces Aidan Stone to tip it over the bar.

A corner to Swindon, now.

Harry Charsley goes into the book for a high boot in a challenge for the ball with Louis Reed.

1-1 on yellow cards, now.

Boos ring around the ground after a promising Swindon break down the right wing by Mandela Egbo is ended after Port Vale's James Gibbons goes down.

There's certainly some tempo to this match after a quiet start.