Ronald Koeman will be happy with this start.

Barca have started on the front foot and the visitors are defending for their lives.

The ball drops for Messi inside the penalty area but his goal-bound shot is blocked.

Outstanding clearance off the line!

Unai García denies Philippe Coutinho from giving the hosts the lead after a sumptuous move opened up the Osasuna defence.

Coutinho has his head in his hands. He was ready to celebrate.

Osasuna are not at the Nou Camp to make up the numbers.

They've just won a corner after some clever work by Inigo Perez.

It's all Barca and keeper Sergio Herrera has to be on his toes to cut out a low cross before Martin Braithwaite can get on the end of it.

A lively start by Braithwaite. Very little from Lionel Messi so far.

This is a day where the result is more important than the performance for the hosts such is their need for points.

They've just won a corner after a marauding run by Martin Braithwaite.

It's a beautiful day in Barcelona. Blue skies above, a great day for a walk by the sea.

Barca have won a couple of free-kicks already as they dominate the opening exchanges.

A must-win game for Barca is under way.

Players from both teams line up on the edge of the centre-circle to pay tribute to former Barca player Diego Maradona, whose picture appears on the big screen.

On 29 November 1899 Football Club Barcelona was founded.

One-hundred-and-twenty-one years on and Barca's players emerge from the tunnel to an empty Nou Camp.

Osasuna finished a creditable 10th in La Liga last season after winning promotion to the top-flight.

They took four points off Barca, winning the corresponding fixture 2-1.

This is not going to be straight forward for the hosts.

Image source, .

Lionel Messi is back after being rested in the Champions League.

He starts in an attack which includes former Middlesbrough man Martin Braithwaite, who is making his first La Liga start of the season.

World Cup winner Antoine Griezmann also returns to the starting line-up.

Barcelona XI: ter Stegen, Dest, Mingueza, Lenglet, Alba, Pedri, de Jong, Coutinho, Messi, Braithwaite, Griezmann.

Osasuna include former Barca academy player Jony who is on loan from Lazio.

Osasuna XI: Herrera, Roncaglia, U García, Navas, Perez, Vidal, Sanjurjo, Moncayola, Jony, R Garcia, Budimir.

Image source, .

Hello and welcome to live text of 14th versus 15th in La Liga.

The mighty Barcelona are just three points off the relegation zone after a wretched run of domestic form.

Image source, EPA

Something quite extraordinary is unfolding in Spain.

Barcelona, one of the most powerful forces in club world football, are being left behind.

Fourteenth in the table, one win in six and 12 points off the top.

Ronald Koeman has work to do.