Messi assists, scores - and then goes off with arm injury
Barca's first win in five La Liga games
Sevilla had won their last four in league
I'm going to sign off now - I've been in for almost 11 hours without a break thanks to Spain's football scheduling.
Real Madrid lost, Atletico Madrid drew and Barcelona go top with a win. That's the story of today.
See you tomorrow for the Milan derby.
Barcelona 4-2 Sevilla
It's all over. Barcelona go top of the table. Alaves' 24-hour reign is over.
Barcelona 4-2 Sevilla
Seconds left now. No chance of a comeback here.
#bbceurofooty
matt wilkinson: How is Ter Stegen not playing for Germany. He has made some outstanding saves this year and as for tonight he has kept Barca in the lead!!
Barcelona 4-2 Sevilla
Three minutes of injury time - with Luis Muriel scoring that goal seconds into it.
Luis Muriel
This game hasn't disappointed. Wissam Ben Yedder picks out substitute Luis Muriel, who curls into the top corner.
Fairly similar to Philippe Coutinho's opening goal.
Barcelona 4-1 Sevilla
That's the second time that a Marc-Andre ter Stegen double save was followed up within two minutes by a Barcelona goal.
Ivan Rakitic
An absolutely brilliant goal by Ivan Rakitic. The ball drops to him on the corner of the box and he hits a sweet first-time volley which cruises into the back of the net.
He holds his hands up as he refuses to celebrate against his former club. Such a good strike.
Who makes two stunning double saves in a game?
Barcelona 3-1 Sevilla
It's another brilliant double save from Marc-Andre ter Stegen. A sensational performance.
He sticks his arm out to deny Pablo Sarabia's effort and then gets up to throw himself at Wissam Ben Yedder's follow-up.
The Nou Camp faithful sing Ter Stegen's name.
Barcelona 3-1 Sevilla
Just noticed Lionel Messi only had 12 touches of the ball in this game - one goal and one assist. Efficient.
Barcelona 3-1 Sevilla
No Lionel Messi to take it so Philippe Coutinho steps up, 27 metres out, and it's scooped away by Tomas Vaclik in a bizarre, yet effective stop.
Barcelona 3-1 Sevilla
Free-kick to Barcelona as Philippe Coutinho flicks the ball off the hand of Daniel Carrico.
Barcelona 3-1 Sevilla
Barcelona make a change after the goal. Luis Suarez gets a standing ovation as he's replaced by Munir el Haddadi up front.
Barcelona 3-1 Sevilla
Sevilla made a change just before that goal as Luis Muriel replaced Andre Silva up front.
Pablo Sarabia
Oh hello. Pablo Sarabia's 25-yard shot takes a big deflection off his old team-mate Clement Lenglet, which wrong-foots Marc-Andre ter Stegen and flies into the back of the net.
Could there be a comeback?
Barcelona 3-0 Sevilla
The TV cameras show Arturo Vidal looking miserable on the bench. He has only played a total of 176 minutes since his move from Bayern Munich.
Barcelona 3-0 Sevilla
It's a great atmosphere at the Nou Camp - easy when you're winning to be fair - and they appear to be signing songs in favour of Real Madrid's struggling manager Julen Lopetegui...
Barcelona 3-0 Sevilla
Good interplay from Philippe Coutinho and Luis Suarez to pick out Ousmane Dembele, but Sevilla get it out for a corner before the youngster can shoot.
Barcelona 3-0 Sevilla
Almost a fourth as Ousmane Dembele finds Luis Suarez again and the striker's shot from a few metres outside the box is parried by goalkeeper Tomas Vaclik.
