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Sutton's David Ogbonna wriggles into a shooting opportunity but the ball goes across the face of the goal and there are no takers in the middle for the hosts.

The National League side are asking all of the questions here so far!

A big upset at Edgeley Park as Cambridge win the penalty shootout and book their place in the third round!

Owen Moxon saw his first penalty for the Hatters saved by U's stopper Jake Eastwood and it proves decisive.

James Gibbons slots home the winning spot-kick and it's another League Two side dumping out League One opposition.

Jamie Tolley
Former Shrewsbury player on BBC Radio Shropshire

Shrewsbury have given Sutton every chance of believing in this one so far.

They can't keep giving the home side these sort of chances.

Shrewsbury need to put the pressure on and get into Sutton's faces.

Sam Stubbs lobs a long throw in to the penalty area from the right but it is well dealt with by Sutton.

From the other side, Stubbs has another chance, but this one seems to slip through his fingers and is comfortably cleared by Jake Taylor.

Fleetwood keeper David Harrington makes two superb saves in the penalty shootout to lead the Cods to a brilliant upset after a competitive match.

They led twice. Well-earned.

Wigan have won on penalties!

Latics goalkeeper Sam Tickle is the hero, saving Barrow's third penalty from Ben Jackson before MJ Williams misses the final spot-kick for the visitors.

From 2-1 down in the 85th minute, Wigan have avoided an upset by the skin of their teeth.

Lewis Simper is over it and bends a free-kick just over the top of the bar for Sutton.

The home side have been the better of the two so far in the first 23 minutes of this one.

Mansfield keeper Owen Mason denies Joe Bauress, Benn Ward and Isaac Heath to send the Stags through.

The first save seemed like it might ricochet off the bar into the net but Bauress doesn't have that kind of luck, while Ward and Heath saw theirs stopped to seal Accrington's fate.

Isaac England is guilty of committing a foul on Sutton danger man Lewis Simper.

Free-kick to Sutton in a dangerous position.

What an unbelievable save by Shrewsbury keeper Will Brook!

The ball is fizzed in from the right and Shrewsbury wing-back Sam Clucas inadvertently sends a bullet header towards his own goal but, somehow, Brook keeps it out with a strong hand to divert away to safety.

Incredible reflexes from the visiting goalkeeper.

Jamie Tolley
Former Shrewsbury player on BBC Radio Shropshire

We need to see this Shrewsbury side moving up the field a little bit more and getting some passing moves going.

We are not really seeing that so far, it is all Sutton.

Stockport and Cambridge cannot be separated after 120 minutes. It ends goalless and now Cambridge, who are 26 league places below County, will be hoping for an upset on penalties.

Sutton are starting to show their quality and get forward down the left-hand side but a ball across the face of the area is well defended by Shrewsbury's Sam Stubbs.

The hosts have just earned themselves their second corner of the match.

Neither side have the energy to cause trouble in the extra time.

Into the shootout we go.

One apiece in normal time.

One apiece in extra time.

Will take penalties to divide these two sides.

League Two Barrow have held on for a draw at League One Wigan and will have a chance to cause an upset from the spot.

Penalty shootout incoming.

Another vital block by Barrow to deny Wigan, this time from Lewis Shipley, who deflects Jensen Weir's effort from the edge of the box behind.

Wow - three yellow cards within the space of the first 11 minutes of this one.

Sutton's David Ogbonna receives a booking for a clumsy tackle on Shrewsbury's Ismeal Kabia.

That one looked painful.

Eight minutes gone and we've seen our second yellow card in this FA Cup tie already.

The man in the mask for Sutton tonight, captain Edon Pruti, hauls down George Lloyd and goes into the referee's notebook.

One each on the card count.