Thanks for joining me today (tonight) (this morning if you're in Spain). I'm going to leave you here now, check out our match report.
See you soon.
Fully deserved, Real Madrid have been excellent over two legs.
A second player booked, Barca defender Javier Mascherano goes in high on Casemiro.
Luis Suarez is caught by Sergio Ramos' boot. What on earth is he still out on the pitch for? He's really struggling with pain. They play Real Betis in their La Liga opener on Sunday.
Real winger Lucas Vazquez crosses, following a Dani Carvajal flick, but Marcelo air-kicks it wide.
Three minutes added on.
So close to a cardless El Clasico. So close. Casemiro tries to go past Luis Suarez, who just grabs onto his hand to stop him getting away. Yellow card.
Real Madrid debutant Theo Hernandez flashes another cross across the goal. He's looked pretty bright. And fast.
Ooof, Casemiro brings down Sergi Roberto in physical fashion. The Barcelona right-back/midfielder is now down in agony...
but he's OK to continue.
Luis Suarez still looks in pain. Just come off, mate, the game is lost. Keep yourself fit for the league at the weekend.
Lionel Messi drops a ball over the top to Luis Suarez, who can't reach it and appears to be limping. That doesn't bode well for Barca.
Gerard Deulofeu wins a corner for Barcelona, but it's wasted.
I'm certainly not going to suggest Barca will be in any way content. But I thought this was going to be a lot worse for them at the break. Real have eased off quite a lot.
Real bring on another young summer signing, Dani Ceballos taking the place of Toni Kroos.
Barca make a change at left-back, Lucas Digne replaces Jordi Alba.
It's not El Clasico without a bit of needle. Luis Suarez, who is offside anyway, goes down under contact from keeper Keylor Navas and has a good old moan to anyone who will listen. He is limping now. Not like Barca are short of world-class forwards at the moment...
Job done. Off comes goalscorer Marco Asensio. Teenage defender Theo Hernandez, a summer signing from Madrid rivals Atletico, comes on.
Ivan Rakitic has a shot blocked for Barcelona. Then Nelson Semedo does something similar. Lionel Messi curls a shot high and wide now.
Off comes Andre Gomes for Barcelona, former Everton reserve Gerard Deulofeu taking his place.
More chances for Barcelona, Sergi Roberto hits a weak shot - saved - Lionel Messi smashes an effort from 20 yards - parried - and then Luis Suarez stoops to head it off the post.
No real pattern to this game now. Real Madrid aren't dominating, because they know the game is won. Barca have been better but they're hardly pushing all out for a goal either.
PSG have just tweeted this...
Jordi Alba crosses from the left and Sergi Roberto's legs are about a yard too short to turn the ball home. Barca might end up getting a goal back.
Real Madrid have had 56% of the possession so far, I'm surprised it's not been more.
Real Madrid make a change in central midfield as Casemiro, who started the first leg, replaces Mateo Kovacic.
Real Madrid don't feel like they're missing Cristiano Ronaldo too much...
Killian Everard: If Guardiola was the ultimate Barce coach, Zidane is the same for Real. Manages all the egos and plays such attractive footy
Helles Mammut: Real Madrid have taken their foot off the gas considerably, not more than a training session now with a 5-1 lead...
Marcus Kimber: Back-to-back champions league wins puts Zidane among the very best ever.
Sammiiee!!: Zidane has worked with the very best managers now he's one of the very best
Barca are starting to look a bit better now in fairness, Nelson Semedo crosses to Luis Suarez, but his glancing header is saved by Keylor Navas.
A chance suddenly opens up for Barcelona striker Luis Suarez but Raphael Varane blocks his shot.
Then Lionel Messi rolls the ball out left, but there's a Neymar shaped hole there and it goes out for a goal kick.
Andrew Ogley: Amazing to see how the balance of power has well & truly shifted in La Liga. Real Madrid stunning. Barcelona look ordinary.
Marcus Kimber: Write Barcelona off at your own peril...
Karim Benzema almost adds a second after going past Javier Mascherano, but his shot is saved by the arms of keeper Marc-Andre ter Stegen.
Barca were enjoying a decent spell there, but then suddenly Karim Benzema controls a ball dead, Javier Mascherano gets it out for a throw-in, and it's Real back in possession.
It's almost a consolation (surely we're not even considering a comeback) for Barcelona, Lionel Messi skips past a couple of defenders and his shot from a bit of an angle hits the crossbar.
Barcelona make a change in defence as Gerard Pique comes off for right-back Nelson Semedo, who makes his debut after his summer move from Benfica. Another formation reshuffle perhaps.
Ayush Shrestha: Barca need 4 gls. They scored four against PSG in the second half with Neymar. Can they do it without him?
Luis Suarez gets behind the Real Madrid defence for once, and his cross or shot, whatever it was is held by Keylor Navas with no Barca players gambling.
Seth Gogo Egoeh: People are beginning to realise the great work Zidane is doing. He should be up there among the best managers in the world.
I was going to ask this, should we actually be crediting Zinedine as one of the modern managerial greats?
What response will we see from Barcelona? The second half is under way.
Good news for bosses and managers in Madrid, this game can no longer go to extra time. Which means it'll be over before 1am local time. Also good news for Salford-based live text commentators, who are getting a bit sleepy.
First Marco Asensio made it 1-0 (4-1 on aggregate) with a rocket...
And then Karim Benzema span Samuel Umtiti to smash home a second
BBC World Service
Luis Enrique got out at the right time!
Barcelona off to sign some players at half-time...
This is so bad that you can imagine Ousmane Dembele handing in a transfer request - and he's not even there yet.
Stu Thompson: Barca don't control the midfield anymore. Neymar helped cover the cracks but have struggled to dominate since Xavi left.
Chris Painter: Are Barce on some kind of cultural exchange with Crystal Palace? It's the only thing that explains this performance
Doctor Joker: Zidane has put new life into Madrid. They play such frightening football.
Good tweet, but I'm not sure I'd go to a GP called Dr Joker...