The hosts make another change. Deyverson is replaced by Newcastle and Stoke City legend, Joselu.

I am joking by the way.

It's all getting very nervy in the Alaves defence now. Ansu Fati pulls out a megs to skin his marker but Antoine Griezmann is then crowded out.

Miralem Pjanic dinks a pass towards the back stick and his fellow substitute Francisco Trincao but on-loan Newcastle defender Florian Lejeune gets across on the cover.

Much better period this from Barcelona who are popping quick little passes off on the edge of the Alaves box. No way through yet though.

What's going on in that Barca defence? At the moment Gerard Pique is the only man back there.

Frenkie de Jong looks like he has been asked to drop in to help out. This could be interesting.

Here we go again. We are back under way and Barca have made a triple change.

Pedri, Francisco Trincao and Miralem Pjanic are all on to replace Clement Lenglet, Sergio Busquets and Ousmane Dembele.

Barcelona defender Gerard Pique looks unhappy about something as he has a word with the match officials in the tunnel.

Can't imagine Ronald Koeman didn't have a word with his centre back about that back pass to Neto at half time.

I'd love to be able to say I fancied Alaves to spring a surprise here but I didn't see this coming despite Barcelona's indifferent start.

Barcelona have won the last six meetings between these sides by an aggregate score of 18-2.

How they could do with a sprinkling of goals in the second half here.

As it stands Barcelona are set to drop down to 14th in La Liga. Unheard of, isn't it?

Barcelona are leaving themselves wide open to counter attacks and Alaves are relishing every second of this.

Sergio Busquets picks up a yellow and now so does Clement Lenglet. Not a good evening so far for Barca.

The Alaves right-back Ximo Navarro is down holding his leg and his night looks to be over.

Martin Aguirregabiria is on as a like-for-like replacement.

Just a few signs that Barcelona are starting to get frustrated.

Lionel Messi looks pretty unhappy after appearing to be tugged back by a home defender and he lets the referee know all about it before kicking the ball away.

A silly yellow. Deyverson and Jota have already been booked for the hosts.

Alaves boss Pablo Machin has never beaten Barcelona as a coach and the visitors have won the last eight meetings between the sides in all competitions.

But could this be his night?

Nightmare moment for Barca that. Luis Rioja couldn't miss.

Image source, Getty Images

You shall not pass.

Image source, Getty Images

Here we go...

Lionel Messi fools me and the defensive wall drilling a low shot underneath their jump.

Víctor Laguardia is not taken in though blocking the shot just in front of his own goal. Sergio Busquets can't sort his feet out to follow up and the chance is gone.

No then what have we here? A Lionel Messi free-kick from 20ish yards out, right of centre of the hosts' goal.

We all know how these usually end up.

That's glorious from Barca. All apart from the finish from Antoine Griezmann.

The visitors go through the gears with little one and two touch passing but the Frenchman pulls his effort badly wide from Ansu Fati's cut back.