Image source, Opta

Manchester United managed just two shots in that half. Both were off target.

There are 47 league places between these teams. Do you think the 11-time FA Cup winners should be doing more? Tweet us on #bbcfacup.

We will leave you make your own mind up...

Chris Waddle
BBC Radio 5 live at Old Trafford

Image source, Getty Images

"Bastian Schweinsteiger has been the best player on the park today for me, he always looks like he has plenty of time on the ball.

"But he never has any options - he's pretty much standing on the ball at times."

Jack Tarrant: A few chants of Jose #Mourinho around Old Trafford as #mufc fail to get shot on target so far in dull first half #FACup #bbcfacup.

Colin Reardon: I keep watching #MUFC thinking this is the day we kick on. And what happens? Even more boring dross! #bbcfacup.

Chris Waddle
BBC Radio 5 live at Old Trafford

Image source, PA

"Sheffield United have done a very disciplined job on Man United there and they've got to be happy with that but Louis van Gaal won't be."

Image source, Reuters

Daley Blind drops to the edge of the box to fire a shot over the bar. That was a rehearsed free-kick routine as found space from the cut-back. His bang average effort sums up the opening period for the home side. 

"Glory, glory Man United" rings out over the PA system. Not very apt.

Nice build-up from the away side, John Brayford forward from right-back, plenty of zing on the cross, plenty of stick on David De Gea's hands.

Alan Green
BBC Radio 5 live at Old Trafford

"It will be interesting to hear the reaction of the home crowd when the half-time whistle goes. They can't be happy."

Image source, Rex Features

A chance here for Wayne Rooney - dead ball, central, 30 yards. There's an air of suspense and then a huge roar from the away end as he finds the wall.

Rooney is quick to question if the wall was back far enough, he cuts the shape of a very frustrated man.

Three added minutes.

Image source, .

Sometimes the average position graphics we use show us a side with good shape over the course of the half.

Today it seems Sheffield United are lovers of rush defending as there are plenty of gaps between their men. You can see a back four though, Martyn Woolford (17) on the left flank is helping his full-back a great deal. The pair of Dean Hammond (35) and Chris Basham (6) in front of the back four are offering some shield.

Just five minutes to the break. I wonder if we may get a few boos here. This has been pretty dire fare by Manchester United.

Dean Hammond commits a foul and the home side will have a free-kick some 40 yards out.

For now though treatment is needed for Paul Coutts and he will leave the field briefly - fine to carry on.

Alan Green
BBC Radio 5 live at Old Trafford

"It's within eight minutes to half time and Man Utd haven't had a single effort struck at goal. If anything David De Gea has been the busier of the two goalkeepers."

Image source, Getty Images

Chris Waddle
BBC Radio 5 live at Old Trafford

"It's a great ball by Daley Blind and a great run by Bastian Schweinsteiger but just head it.

"He's six yards out, just put your head on it."

Bastian Schweinsteiger asks the question tentatively. He knows there's nothing coming here. The German pulls a diagonal ball down in the box and Jay McEveley makes some contact with him but not enough. No sign of the referee pointing to the spot.

Now some daylight for Wayne Rooney, slipped through... no. Out comes George Long to slide at his feet, the ball had too much zip on it.

Chris Waddle
BBC Radio 5 live at Old Trafford

Image source, Reuters

"I'd like to see Rooney behind Martial."

Surely Wayne Rooney is being wasted in this system? Just eight touches so far - only Billy Sharp (6) has less.

The home side cannot get their front man on the ball, it's a struggle.

He comes deep to get in the play and arrows a ball at Matteo Darmian but Jay McEveley intercepts, volleying the ball against the head of Darmian, much to the delight of the away fans.

Image source, .

Saqueeb Rajan: It's great to have Chris 'Pele' Smalling in defence but we need a Pele upfront scoring goals!! #MUFC #bbcfacup.

Shah Iftekhar: #bbcfacup Why is Marouane Fellaini playing? He just ruins the team.

Image source, Getty Images

Alan Green
BBC Radio 5 live at Old Trafford

"We haven't had a chance here yet and it's not been very good."