Postpublished at 77 mins
Cadiz 2-1 Barcelona
Lionel Messi does appear to be shooting from corners sometimes this season. The keeper punches another effort away.
Barca sit seventh in La Liga, below Cadiz in table
Koeman's side have won six out of seven in all competitions
Cadiz only have one win in five after strong start
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Emlyn Begley
Cadiz 2-1 Barcelona
Lionel Messi does appear to be shooting from corners sometimes this season. The keeper punches another effort away.
Cadiz 2-1 Barcelona
Corner to Barca, who are getting a sub ready.
Cadiz 2-1 Barcelona
Barcelona have lost each of the last three La Liga matches when they conceded a goal to a player aged 35 or older - Joaquin (Real Betis), Aritz Aduriz (Athletic Bilbao) and Luka Modric (Real Madrid).
Alvaro Negredo is 35.
Cadiz 2-1 Barcelona
Barcelona are desperate for an equaliser. Lionel Messi cuts inside but his shot is saved.
Cadiz 2-1 Barcelona
HUGE chance for Barcelona, one of their best of the game. Sergio Busquets plays a brilliant ball in behind for Sergino Dest, who is 12 yards out but just slices it wide of the far post.
Cadiz 2-1 Barcelona
Lionel Messi finds Jordi Alba, who crosses but this time no Cadiz player puts the ball into his own net for him.
Cadiz 2-1 Barcelona
Alvaro Negredo had been on the pitch for 44 seconds when he scored. He gambled and won on that block.
Cadiz 2-1 Barcelona
No penalty.
Barca's corner comes to nothing.
Cadiz 2-1 Barcelona
They have to wait to take the corner. I think they're checking whether there was a handball in the wall there. Could this be a penalty?
Cadiz 2-1 Barcelona
Corner to Barca as Lionel Messi's free-kick hits the wall.
Cadiz 2-1 Barcelona
Remember Cadiz have not won a La Liga home game since 2006.
They have not beaten Barcelona in the league since 1991.
Cadiz 2-1 Barcelona
And yes, that is THE Alvaro Negredo.
Alvaro Negredo
First touch.
It's an absolute shocker from Barcelona. Jordi Alba throws the ball to Clement Lenglet, who misses it entirely. Marc-Andre ter Stegen tries to clear but he's closed down by Alvaro Negredo.
Negredo holds his nerve to go round the sliding Frenkie de Jong and tap into an empty net.
Cadiz 1-1 Barcelona
Alberto Perea hits the free-kick straight into the wall. That's Cadiz's first shot other than the goal.
Cadiz 1-1 Barcelona
Cadiz make a change as they wait to take this free-kick. Alvaro Negredo replaces goalscorer Alvaro Gimenez.
Cadiz 1-1 Barcelona
Free-kick for Cadiz in shooting range. Yann Bodiger is just about to skip into the box as Clement Lenglet brings him down. Yellow card.
Cadiz 1-1 Barcelona
That's own goals in Real Madrid and Barcelona's favour today.
Pedro Alcala own goal
Just like that Barcelona are level. Lionel Messi feeds Jordi Alba down the left and he sends in a first-time cross.
Pedro Alcala blocks it but sends the ball towards his own goal. Keeper Jeremias Ledesma had already moved to stop the cross and can't react in time.
Cadiz 1-0 Barcelona
Huge chance for Cadiz as they break forward but when the cutback comes, there wasn't any other attacker and Sergio Busquets clears. The dangers of leaving everybody back.
Cadiz 1-0 Barcelona
Lionel Messi blocked, Ousmane Dembele finds Antoine Griezmann, who stands on the ball. Attack v defence.