Stuart Dallas is OK to continue and he's back on. Good news.

Stuart Dallas needs treatment for a possible head injury.

He slips as Bukayo Saka cuts inside and the young Arsenal player's shot hits him in the back of the head while he's on the ground.

Play is stopped and the medical staff are on.

It's still high tempo and end to end, but not as much goalmouth action as the early stages. Quite feisty too.

Gabriel Martinelli runs down the left and pulls it back into the box. Martin Odegaard steps over it... but there's nobody behind him except Leeds defenders.

No chances in three minutes now. Booo.

There's a break in play because of a clash of heads between Jack Harrison and Takehiro Tomiyasu. They're both fine.

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Bob Moss: Going out on a limb and saying this will not be goalless.

Arsenal have named the same starting XI in four consecutive Premier League games for the first time since a run of six in April to May 2015.

Illan Meslier makes his third save of the game after four minutes and 50 seconds.

Kieran Tierney cuts in from the left and hammers in a right-footed shot from 20 yards which is straight at Meslier.

Another Arsenal chance! Martin Odegaard plays it into Thomas Partey, whose shot is saved by Illian Meslier.

Arsenal should be ahead!

Martin Odegaard glides forward and feeds Alexandre Lacazette, whose shot is saved by a sliding Illan Meslier. Bukayo Saka puts the rebound wide of a half-empty goal.

Raphinha heads over from the corner.

Luke Ayling is furious because he claims he was pushed over by Alexandre Lacazette. No penalty.

Bright start from Leeds as Stuart Dallas intercepts a pass, runs into the box and has a cross blocked. Corner.

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The first game of the weekend - what was meant to be the sixth game - is under way.

OK, I'm fairly sure this game isn't going to be called off now. The players are out.

Ashley Williams
Former Wales captain on BBC Final Score

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It's not fun playing in the fog, especially being at the back.

Elland Road is a tough place to go any way, but with those conditions it will be even worse.

This is Leeds' first game since their record-equalling 7-0 thrashing by Manchester City.

That was their joint biggest defeat in any competition in over 100 years.

Marcelo Bielsa said there were no positives to take from the worst performance of his four-year reign.

Arsenal have won two games in a row.

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Arsenal

Arsenal boss Mikel Arteta, speaking to Sky Sports: "We've had a couple of good results and performances and we need to get some consistency going. We want to improve our form and position in the league, but we have a tough game today."

On why away performances have not matched home performances: "I would say it is not the performances, it is the results. We lost the game at Old Trafford, but we played much better compared to the last year when we won. You need that resilience away from home sometimes and you need something else to get that result, And we need to improve results that's for sure."

On challenge facing his side: "I know what to expect out there, It is going to be a battle. I'm expecting a really difficult match."

On the Covid outbreak affecting football: "We cannot train the day after the match because we have to close Colney. We have a few cases like any other team. The Premier League has to make a decision, whether it is the best way to continue. And we will carry on depending on what they say."

On who has tested positive at Arsenal: "We had quite a lot of staff members and a few players as well."

Spanish La Liga

Barcelona, with a few players you've probably never heard of, are facing Elche at 17:30 GMT.

Follow live text commentary of that game here.

Leeds United are winless in their past 10 meetings with Arsenal - and have lost eight of those - since a 3-2 victory at Highbury in May 2003.

Arsenal are unbeaten in their past six away games against Leeds (W4 D2), since a 1-0 loss in November 2000.

The Gunners haven’t conceded more than once in any of their past 13 trips to Elland Road.

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