And still United press.

Cameron Borthwick-Jackson feeds Memphis Depay on the edge of the penalty area.

The Dutchman jinks and weaves his way into a shooting position before having a scuffed low shot turned away by goalkeeper Jayson Leutwiler.

It is looking a little ominous for Shrewsbury fans.

Manchester United are having shots at will on goal.

They are having all of the ball and the opener - for them - looks just a matter of time. 

Steve Claridge
Ex-Portsmouth striker on BBC Radio 5 live

"Chris Smalling wont get a better chance all season. He's six, seven yards out. He just needs to direct it down."

Image source, Reuters

That's more like it. Shaun Whalley is played in down the right for Shrewsbury.

He pokes it through for the marauding Jack Grimmer but the danger is sniffed out.

United break and Memphis Depay has another shot.

This one was far better... it only reached row X, rather than hitting the roof. Awful.

Image source, Reuters

That was pretty wild too.

Memphis Depay collects the ball with his back to goal, turns and then shoots against the roof of the stand behind the goal.

Huge cheers from the home fans but their side haven't started yet.

Wake up Salop. 

Early corner for Manchester United and it should be 1-0.

Daley Blind swings it in from the right and an unmarked Chris Smallling leaps like a salmon but heads well, well over.

If this was at Shrewsbury's old home - Gay Meadow - that fella in the boat would be busy retrieving the ball...

A reminder of the line-ups...

We are go.

Image source, .

Could it be a second?

Everyone - bar Manchester United fans - is in for a memorable evening if this is the case...

Image source, .

The big question this evening is....How do you pronounce Shrewsbury?

Shrewsbury Town youngsters give Match of the Day kickabout the low-down on the club, their motto and how to pronounce their name correctly!

Fourth round match winner Jack Grimmer also gives his thoughts on his FA Cup success so far.

Watch here.

Phil McNulty
BBC Sport chief football writer

"The sound of Robbie Williams' "Let Me Entertain You" blares out around Greenhous Meadow - a message that appears to have been lost on Man. Utd. manager Louis van Gaal this season."

'Eye of the Tiger' playing over the tannoy.

The fans packed in. The floodlights.

This has the magic of the FA Cup all over it.

The Shrews - or Salop - are up for this...

Louis van Gaal has barely been off the back pages.

And when you consider Manchester United have only won five of their last 18 matches in all competitions, it isn't a total surprise.

Two of those victories were in the FA Cup against Sheffield United and Derby County though.

The Dutchman is quoted in today's newspapers saying United have lost the fear factor. I'm not sure that will appease the Old Trafford faithful.

Here come the teams...

Sai Khan: Kindergarten Klopp? Send some of the team back to the academy?

Max: Aston Villa: Titantic. Just sinking and sinking....

Ben Cornish: West Ham United - The French Connection.

Tell us who you support and how you would sum up your season in a movie using #bbcfacup, external or text 81111.

Image source, Getty Images

Anyone smell a cup upset? Shrewsbury's Greenhous Meadow will be bursting at the seams.

Remember Leyton Orient beating Chelsea in 1972? Sutton beating Coventry in 1989? Hereford beating Newcastle in 1972?

This would be right up there if Shrewsbury beat United.

They couldn't. Could they?

BBC Radio 5 Live

West Ham midfielder Michail Antonio on who he would rather face in the FA Cup last eight:

"It's a difficult question. Shrewsbury would be tricky and Manchester United have a great ground. But right now I want to get the easiest way through to the semi-finals. so I'll probably go Shrewsbury."

Image source, Getty Images

BBC Radio 5 Live

Hull manager Steve Bruce:

"Any youngster that comes into the United team tonight there is an expectation on them. It's difficult. They have a great history in it. The club is built on that history and tradition of finding that young player."

Image source, Reuters

Phil McNulty
BBC Sport chief football writer at Greenhous Meadow

Image source, Reuters

Michael Carrick, who used to be regarded as the sort of steadying influence ideal for these games, pays the price for his very poor performance in the Europa League loss to Danish side FC Midtjylland.

The 34-year-old midfielder drops to the bench in what is an experienced Manchester United line-up.

Wayne Rooney is out for several weeks with knee ligament damage and keeper David de Gea is missing with an ankle problem, so Sergio Romero continues in goal.

Manager Louis van Gaal, with so much resting on tonight, is taking no chances.