Suarez now La Liga top scorer on 18
Athletic keeper sent off early on
Messi replaced by Turan at half-time
Earlier, Real Madrid beat Sporting Gijon 5-1
Look, we've all got homes to get to, so I'll leave you there. Twelve goals in two games, I don't think we've had a bad day today.
Unless you're a fan of Sporting Gijon. Or Athletic Bilbao. Or you're the Athletic keeper. Or Iker Muniain.
Good night.
It could all have been so different had Javier Eraso not chipped his shot over in the second minute.
Barca broke from that and won the penalty - which came with a red card for Athletic's keeper - to start the rout.
Also how unlucky for Iker Muniain - making his first La Liga start of the season following a serious injury. He was the man replaced by the sub keeper after four minutes.
Image source, BBC Sport
Image source, AFPBarcelona have been brilliant against 10 men and go back to within two points of leaders Atletico Madrid with a game in hand.
Two minutes to go.
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Graham Jack Thirkill: I cannot even begin to comprehend the gap between Barcelona and Man United at the moment.
Luis Suarez has scored more goals than any other player in the top five European leagues in all competitions - 29.
Barca defender Gerard Pique is booked for clattering Javier Eraso in the face.
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Dave Wood: As much as Barca are a joy to watch, this match has been ruined by an over zealous ref
Pure Gunner: Everything Real Madrid can do, Barca do it better.
Neymar is inches from getting his second. Aleix Vidal puts in a cross from the right but the Brazilian forward misjudges his jump and misses the ball.
Javier Eraso, who missed a couple of decent chances today, is booked for kicking Javier Mascherano from behind.
A last five minutes of five-a-side when you're knackered kind of tackle.
Luis Suarez hat-trick
Image source, AFPIt's so easy for Barcelona, who have been excellent to watch tonight - admittedly against 10 men. A Sergio Busquets cross comes in from the right and Luis Suarez powers home a header.
Time for a seventh?
Neymar is a sublime footballer when he's on form, he takes the ball in his stride with a brilliant touch, goes on a run and then tries to go around the keeper by rolling the ball under his foot but it's saved.
Barca have a free-kick but Neymar fires the shot over. Will Barca find a sixth in the final 10 minutes or so?
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Image source, Rex FeaturesJack Tanner: Sergi Roberto - the Catalan John O'Shea
Albeit with fewer last-minute equalisers against Germany and nutmegs on Luis Figo
Athletic Bilbao substitute Ander Iturraspe slams a free-kick into the wall and Oscar de Marcos - who was booked in the aftermath of Barca's fifth goal - fires the rebound wide.
