What a fantastic save from Ruben Blanco to keep his side in the game. Lionel Messi heads towards goal and it looks for all the world like it's going to be 3-1. But somehow the Celta keeper sticks an arm out and keeps the ball out.

Celta Vigo are looking fairly comfortable at the moment. I look at Barca's bench to see who they could bring on to change things, Paco Alcacer maybe.

A decent spell of possession from Celta Vigo. But then they lose the ball and Barca swarm. Lionel Messi tries to get some space just on the outskirts of the box but Celta's defence do well to take the ball from him.

Andres Iniesta doesn't last 90 minutes anymore, but this is a really early withdrawal. He was playing well. Denis Suarez replaces him.

Andres Iniesta goes on a Ricky Villa-style tight-control dribble but Jordi Alba is offside when the captain eventually releases the ball.

Barca are almost ahead, Lionel Messi passes to Paulinho, who steps around Ruben Blanco. The keeper forces him wide enough that his shot is from a wide angle and is into the side-netting.

Oh Iago Aspas, you complete dope. He has the ball down the left - there are two men in the centre completely free but he doesn't look up. When he eventually does there aren't as many gaps, and his pass goes out of play.

The second half is under way.

We probably shouldn't be too surprised at the goalscorers.

Lionel Messi has scored four goals and assisted four in his last three games against Celta at the Nou Camp.

And Iago Aspas has scored four goals in his last four league appearances against Barca - three at home and then today's away goal.

Image source, Reuters

This has been a great lunchtime treat so far. We're level at the break.

A chance for Celta right at the end of the half. Pione Sisto crosses, it goes past Maxi Gomez and Daniel Wass lashes wide at the back post. Had he picked out Gomez, it would have been a better opportunity.

Pione Sisto shoots and effort well wide for Celta. But seconds later the Denmark winger does a good defensive job to take the ball off Lionel Messi break up a Barca attack.

Maxi Gomez is flagged offside as he's played in. Barca's offside trap actually working there.

Barcelona almost ahead as Ivan Rakitic's cross finds Paulinho, but his header is beaten away by Ruben Blanco.

Lionel Messi is in exquisite form so far. Some magic footwork in the box, before he passes to Jordi Alba, who can't do anything with the ball. Back to Messi. More wizardry, but Celta get it away,

Lionel Messi plays a fine pass to Sergi Roberto down the right but his cross is to nobody.

Now the ball breaks to Messi, who wriggles like a worm on the edge of the box to lose his marker but his shot is blocked.

Barcelona are almost ahead as Lionel Messi hits the post. Luis Suarez has a shot blocked, the rebound comes to Messi, whose header hits a Celta player - the ball comes back to Messi, whose shot from a very tight angle goes wide off the post.

Defences are not on top here. Which is great for a neutral. Ivan Rakitic is in behind but his cross is past everyone in the centre.

Lionel Messi plays a wonderful through-ball to Luis Suarez, who slams home. The flag went up straight away but it was pretty borderline. Not sure he was offside. What a game this is becoming.