They win another corner but it comes to nothing.

Cadiz have a corner now as Antoine Griezmann blocks a cross from Alberto Perea.

Barca work it to Pedri and his shot is blocked. And now Lionel Messi has a crack from 18 yards which the keeper saves.

Barcelona have a deflected cross and Cadiz keeper Jeremías Ledesma pounces before it goes for a corner.

Another Cadiz attack, they've almost had as many in the second half as the first but Alex Fernandez's cross is just beyond everyone.

Cadiz have a chance to score within 60 seconds of the restart but they can't quite get a shot away and Marc-Andre ter Stegen punches a cross.

The second half begins.

Frenkie de Jong has gone to centre-back.

Ronald Koeman makes two changes at half-time. Pedro and Ousmane Dembele are on for Philippe Coutinho and Oscar Mingueza.

The average positions tell their own story too.

Image source, Opta

Cadiz had 19.8% of the ball in the first half. They completed 70 passes to Barca's 392.

One shot to Barca's six.

The half-time whistle goes. We have a huge shock on the cards.

Cadiz are playing a 10-0-0 formation as they try to see this to half-time. Jordi Alba shoots wide from 25 yards.

Three minutes added on. We've had an injury and a VAR goal check.

Another Barca corner, another catch from the keeper - this time it was Philippe Coutinho's cross.

This time the keeper catches.

Lionel Messi shoots from the corner and it's tipped over the bar by the keeper.

Barca win their fifth corner of the game.

Lionel Messi tries another quick free-kick but the Cadiz keeper punches.

Barca free-kick, 40 yards out, as Jens Jonsson fouls Antoine Griezmann.

Nice Barcelona move but it fizzles out as Clement Lenglet's ball is too long for Jordi Alba to keep in.