Welcome to our live text coverage of Manchester United's third-round FA Cup tie against Sheffield United at Old Trafford.

Martial pressures Collins into clearing for a throw. Sheffield United are comfortable so far.

Fellaini finds Martial, who comes inside and plays the ball out to the left. It's ponderous.

Fellaini tackles Connor Sammon as he tries to bring the ball out of Sheffield United's final third.

Borthwick-Jackson wins a corner with another cross, this time deflected. Mata takes, Fellaini wins, and Sheffield United clear at the second attempt. They break forward but United recover.

Borthwick-Jackson's cross from the left is cut out.

Fellaini picks out Darmian, who returns the pass. Sheffield United have dropped deep now.

Manchester United fans already losing patience with Wayne Rooney, it seems.

Mata whips in a cross to the back post for Martial, but it's just too far ahead of him.

Herrera finds Martial, he tries to beat Brayford down the outside on the left, but the ball touches him last as it goes out of play.

Fellaini wins the ball, nutmegs someone and then passes to someone in a Manchester United shirt. I know.

Nothing so far. Sheffield United win a throw high up the pitch and force Schweinsteiger into a loose clearance.

The match gets underway.

You can follow me on @lxndrnthrtn on Twitter if you'd like to send in comments during the match.

Van Gaal has spoken before the match.

Here's a man who might help United in the second half of the season.

Sheffield United have had a poor start to the season in League One, and fans regard eighth position as a miserable thing, all in. Manchester United should regard themselves as heavy favourites if they get Fellaini off for a sub quickly.

Cameron Borthwick-Jackson is starting at left-back after a couple of decent performances for United under Van Gaal. Marouane Fellaini starts, too, making Sheffield United favourites.

Will United be welcoming fresh names to Old Trafford this month? Today's Euro Papers video suggests so...

Someone's very excited for today's tie:

A strong United side to take on Sheffield United...

Manchester United: De Gea, Darmian, Smalling, Blind, Borthwick-Jackson, Schweinsteiger, Fellaini, Herrera, Mata, Martial, Rooney. Subs: Romero, McNair, Varela, Lingard, Pereira, Memphis, Keane. /// Sheffield United: Long, Brayford, Basham, Coutts, Sharp, Collins, Woolford, Sammon, McEveley, Edgar, Hammond. Subs: Howard, Flynn, Baxter, Done, Campbell-Ryce, Reed, Adams.