Daniel Cheng: David Luiz getting injured isn't a bad thing for our defence.

A second change for Sheffield United as Kieron Freeman comes on for George Baldock, before Arsenal also change things, bringing on Dani Ceballos and Eddie Nketiah on for Joe Willock and Alexandre Lacazette.

Pierre-Emerick Aubameyang remains unused on the Arsenal bench.

How has that stayed out? Arsenal, as they often do, look extremely vulnerable to the ball played into the box. This time it is a cross from Jack Robinson and it finds his fellow centre-half Chris Basham at the back post.

Basham dives at it, but sends his header just the wrong side of the post.

The hosts are knocking on the Arsenal door, but the Gunners' lead remains intact

The ball is in the net from a close-range John Egan header, but the assistant's flag is up. A VAR check shows David McGoldrick was offside earlier in the move before Egan thought he had equalised.

For the second time today, Sheffield United are denied a potential goal.

Nearly a goal from a goalkeeper!

Dean Henderson launches a clearance, it catches the wind and a huge bounce very nearly embarrasses his opposite number Emiliano Martinez, with the ball just bouncing over the top.

Does that count as a shot at goal?

David Luiz, who has just signed a new one-year contract at Arsenal, looks like his afternoon is done. He was trying to shepherd the ball out of play under pressure from David McGoldrick. The home forward does not touch Luiz, who pulls up and that may be well be a hamstring pinged.

On comes Rob Holding, off goes Luiz.

Good goalkeeping from Emiliano Martinez who takes the decision to sprint off his line to the edge of his penalty area but it is a good decision as he gets his hand to a cross to push away the danger.

A bright start to the second half for the hosts.

Some good ball juggling from George Baldock helps keep the ball in the Arsenal penalty area before David Luiz launches it out of play away from David McGoldrick who was lurking.

Back In February, Sheffield United beat Bournemouth 2-1 on a stormy day in South Yorkshire and the win took them up to fifth in the Premier League, dreaming of the Champions League.

But things have not gone the Blades' way since football's restart, they have not scored a goal and if that doesn't change in the next 45 minutes they will be heading out of the FA Cup as well.

The second half is under way at Bramall Lane.

Can you name all 45 teams to have played in an FA Cup quarter-final this century - including this year's teams?

We will give you the years they played in the FA Cup quarter-finals since 2000 - and their division in the 2019-20 season (Premier League unless otherwise stated). You have 10 minutes...

• Click this link to play along. Good luck.

Image source, PA Media

Bristol City's fading Championship play-off hopes were dealt another blow as Sheffield Wednesday recorded a deserved 2-1 victory at Ashton Gate.

Connor Wickham headed the Owls in front after 13 minutes, directing Jacob Murphy's near-post corner past goalkeeper Niki Maenpaa when completely unmarked.

Wednesday doubled their advantage from another set-piece on the hour mark, with Massimo Luongo this time hooking a shot in from close range.

The hosts, who rarely threatened after Nathan Baker had been denied by a brilliant point-blank save from Joe Wildsmith early in the game, did reduce the deficit through Nahki Wells' header.

But, despite having 22 minutes to find an equaliser, the Owls were comfortable in seeing the game out to open up a 10-point gap on the bottom three.

Gbadero: I believe Lacazette was fouled, it's a penalty, spot on VAR. More dreamy, two VAR decisions in Arsenal favour, what's today's date?

OR...

Andrew Humphrey: Tap on the ankle and Lacazette goes over like he's been upper cut by Anthony Joshua. And a pen is never a fitting punishment when striker is on edge of box facing away from goal.

Manchester United are already in the FA Cup semi-finals. At the moment it will be Arsenal that will be joining them.

Sheffield United have 45 minutes to keep their FA Cup hopes alive.

The Gunners have the lead at the break thanks to Nicolas' Pepe's fine penalty after Chris Basham was adjudged, by VAR, to have fouled Alexandre Lacazette.

The two number 19s - Jack Robinson for Sheffield United and Nicolas Pepe for Arsenal - collide in the Blades penalty area. Pepe wants a penalty, but is not going to get it and the free-kick goes against him.

Ian Gale: Whoever is controlling the crowd noise at Sheffield United is having a blinder - boos when a decision goes against them and cheers when they play well. Sounds like the crowd is actually there!

Another clash of heads, this time Kieran Tierney and George Baldock are involved, but both seem OK. Will the half ever end?

Watch Pepe give Arsenal the lead from the penalty spot after Alexandre Lacazette is adjudged to have been fouled inside the area in a VAR review.

Should it have been a penalty or not? Tell us via #bbcfootball

SEVEN minutes of first-half injury time. Can Sheffield United get back into this one and go into the break level?

It has taken more than 40 minutes, but Sheffield United have now had their first shot on target. It comes from Oliver Norwood, 25 yards out, but it is safely caught by a diving Emiliano Martinez.

Straight down the other end, and goalscorer Nicolas Pepe nearly gets his second. He meets a low pass first time, shoots at goal, but it is inches wide. After a slow start, it is getting better.