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Shrewsbury are 23rd in League One
Oxford City are 13th in the National League South
Shrewsbury beat Cambridge United in round one, while Oxford won against Northampton
Luke Leahy pen (53 mins)
Rovers pick up where they left off in the first half.
James Daly draws a foul in the box, with Tony McMahon the transgressor this time.
Luke Leahy convers his second spot-kick of the day, sending the Darlington keeper the wrong way and slotting into the bottom left-hand corner.
Max Watters (50 mins)
League Two Crawley take the lead at Plough Lane.
Some pressure from the Reds prompts chaos in the Dons area and Max Watters is on hand to turn in a loose ball from close range.
An upset is on the cards!
Stevenage 0-1 Hull
Chance for Stevenage to go level.
Remeao Hutton's cross finds the feet of Danny Newton. The forward didn't know too much about it, but still forces Hull keeper George Long to make an important stop on the line.
Shrewsbury 0-0 Oxford City
Shrewsbury start the second period the same way they finished the first.
Ollie Norburn drills in a low shot. It's blocked and Oxford City hack clear after a scramble in the box.
They're getting closer.
Image source, Getty ImagesTom Eaves (51 mins)
Great penalty.
Chelsea loanee Jamie Cumming dives the right way, but Tom Eaves' strike is too accurate. Right in the corner.
Stevenage 0-0 Hull
Stevenage's Luke Prosser fouls Martin Samuelsen in the box.
Huge chance now for the League One leaders.
#bbcfacup
The second halves of the eight 13:30 GMT ties are just getting started up and down the country.
There are no definite upsets on the cards currently, but six games are in the balance.
HT: Stockport 1-1 Yeovil
And Yeovil were pegged back by Stockport just before half-time. Here was their opener as Matthew Warburton netted against his former club.
HT: Bristol Rovers 4-0 Darlington
Bristol Rovers have been superb against non-league Darlington.
Here are their opening two goals.
HT: Wimbledon 1-1 Crawley
We've been spoilt for choice at Plough Lane. Two great finishes in an end-to-end game.
That game is less than 20 minutes away.
As we wait for the restart in our 13:30 GMT matches, let's look at some of the best goals from the opening half.
Marine v Havant & Waterlooville (14:45 GMT)
Image source, Rex FeaturesWe've still got one more game to come this afternoon as Marine of the Northern Premier League Division One North West take on National League South Havant & Waterlooville.
Both sides are looking to reach the third round for just the second time in their history.
Marine last did so in the 1992-93 campaign before losing to Crewe. While Havant & Waterlooville reached the fourth round in 2007-08 eventually losing to Liverpool.
The eighth-tier Merseysiders are looking to pull off another big win following their shock victory over Colchester on penalties in round one.
They face an away side who have tasted defeat in three of their five ties against fellow non-league opponents in the FA Cup proper. Although they did edge out Cray Valley Paper Mills in the first round this term.
Not a bad opening 45 from Bristol Rovers then.
All of our games have reached the break now. Plenty of ties are still in the balance.
Erhun Oztumer (45+2 mins)
Yeah, I'd say Bristol Rovers are getting used to Paul Tisdale's playing philosophy now.
They grab a fourth in first-half injury time to surely put this game to bed.
It's a lovely move as Sam Nicholson plays in Erhun Oztumer, who guides the ball past the helpless Quakers keeper Jonathan Saltmer.
It could be a long second half for National League North Darlington.
Luke Leahy pen (44 mins)
Bristol Rovers establish a commanding lead before the break.
David Atkinson chops down James Daly, and Luke Leahy converts the resulting penalty
Carlisle 0-2 Doncaster
A bit of controversy at Brunton Park as Carlisle are denied what they think is a penalty.
Joshua Kayode goes down under a challenge in the Rovers box, and the whistle is blown.
But referee Scott Oldham books the forward for simulation instead, which the visiting defence appreciated.
Any more twists and turns as the half-time whistle approaches?
John Rooney (41 mins)
Straight down the middle from John Rooney.
We're back level in today's all non-league tie.
Stockport 0-1 Yeovil
Charlie Lee brings down County's Ryan Croasdale in the box.
No hesitation from referee Thomas Bramall.
Mansfield 1-1 Dagenham & Redbridge
All Daggers right now as the fifth-tier side look to retake the lead.
Sam Deering is inches away from tapping home a low cross from Scott Wilson but can't quite make contact.
You feel a goal is just around the corner.
Image source, Getty Images