Can Barcelona respond? Almost! Philippe Coutinho lets rip from 18 yards but his shot goes narrowly wide. Better from the visitors.

Barca's Pablo Gaviria is the first player in the referee's book. He gives away a free-kick for a foul on Lemar.

From the resulting set-piece, Yannick Carrasco whips the ball just over the goal.

Corner to Barcelona. It's whipped in with pace by Philippe Coutinho but it's an Atletico head that meets it first to clear the danger. Nothing much happening for the visitors so far.

Still no shots on target to report as we approach the 20 minute mark, but that's another good attempt from Atletico!

Similarly to Thomas Lemar's earlier attempt, Joao Felix takes aim from the edge of the box and just misses the bottom left corner.

The cameras show Ronald Koeman delivering instructions remotely from the stands.

Of course, Barcelona are still unbeaten in their six matches in La Liga so far this season - something they've only previously managed once before, in 2017. They COULD even go above Atletico with a win tonight.

Atletico are looking rather dangerous with their quick breaks forward, but their latest chance fizzles out as Joao Felix commits a foul in attempting to win back possession.

Good attempt!

Atletico push Barcelona back and Lemar fires a low shot just wide from the edge of the box.

Ah. Joao Felix can't make anything happen from the set-piece and the ball rolls out of play. Wasted opportunity.

Atletico break at speed as Koke regains possession in midfield. Barcelona get back, but Joao Felix is hauled to the ground and the hosts will have the chance to send a free-kick into the box.

Atletico Madrid have not lost any of their last three meetings with Barcelona in La Liga, which is their best unbeaten run against them in the competition since 2006.

However, Atletico did lose their last league match against Alaves and are looking to avoid consecutive defeats in the competition for the first time since February 2019.

Barcelona are dominating the early possession at the rocking Wanda Metropolitano.

Off we go!

Memphis Depay gets things under way.

On Thursday, Spanish football expert Guillem Balague told BBC Sport it is "just a matter of time" before Koeman is sacked.

"Timing is of the essence, not only to get rid of Koeman but also to get a plan in place," Balague said.

Koeman will be once again absent from the dugout as he completes the final match of his suspension after he received a red card against Cadiz last week.

Can his side ease some of the pressure this evening?

Ronald Koeman will remain as Barcelona manager and "deserves a margin of confidence".

That's according to club president Joan Laporta.

Koeman was reportedly on the brink of being sacked after Barca lost their first two Champions League games, while they have also been struggling in La Liga.

"Koeman will continue as Barca coach. He has the benefit of the doubt regardless of today's result," Laporta said in midweek.

"We understand that he deserves a bit of margin for many reasons: He's a Barca fan and legend for fans all over the world. He'll stay on and deserves a margin of confidence.

"He loves Barca and decided to come here in a really tough time both institutionally and on a sporting front."

It looks like it could be a 4-3-3 for Barcelona meanwhile, with Pablo Gaviria and Philippe Coutinho supporting Memphis Depay in attack.

Barcelona XI: Ter Stegen, Dest, Mingueza, Pique, Araujo, Busquets, De Jong, Gonzalez, Depay, Gaviria, Coutinho.

Here is how Atletico line up this evening.

Diego Simeone's side shape up in a 5-3-2, with former Barcelona striker Luis Suarez in attack alongside Joao Felix.

Atletico XI: Oblak, Gimenez, Hermoso, Savic, Llorente, Lemar, Carrasco, Koke, De Paul, Felix, Suarez.

An away trip to the defending champions. Just what you want when you're in need of a win.

Yes, stuttering Barcelona are away to Atletico Madrid tonight as Ronald Koeman's side attempt to bounce back from a rather poor Champions League defeat by Benfica in midweek.

Atletico meanwhile will be looking to move level with Real Madrid before the league leaders play on Sunday.

It should be a good one.