HALF-TIMEpublished at 20:33 British Summer Time 22 October 2014
Cristiano Ronaldo looks reasonably pleased with himself as the whistle goes. El Clasico on Saturday - could be quite a week for him.
Lallana replaces Balotelli at break
Ronaldo's 70th Champions League goal
Anderlecht 1-2 Arsenal
Gibbs and Podolski score late on
Tom Rostance
Cristiano Ronaldo looks reasonably pleased with himself as the whistle goes. El Clasico on Saturday - could be quite a week for him.
What a strike! That could have been the start of something special, as Philippe Coutinho gets the ball out of his feet 25 yards out and then smashes one against the far post. Brilliant hit.
Liverpool fans can remember Istanbul with fondness now. Liverpool came from 3-0 down to Carlo Ancelotti's AC Milan side in 05 - could they do it again? Rickie Lambert is on the bench...
Ewan in Edinburgh: James Rodriguez - so good he only needs one eye to split open a defence.
Lisa: This is men against boys, the only English team that can stop Madrid is Chelsea with a beautifully drilled and parked bus!
Duncan in Richmond: Not playing Queens Park Rangers now Liverpool!
It's Turkish delight for Borussia Dortmund who are now 3-0 up at Galatasaray with Marco Reus notching just before the break with a stunning long-range strike.
Liverpool are getting a hiding - but hang on a minute! Good chance for Liverpool now as Mario Balotelli is able to find Joe Allen arriving in the middle, he slices his shot just wide from 20 yards.
We can praise Real Madrid for their play at times but this is just a shambles. Rubbish defending from Liverpool, three men go up for a header from a corner and miss it, Simon Mignolet tries to tackle Pepe as the ball bounces clear and the loose ball falls at the feet of Karim Benzema. He can't miss - and doesn't.
Phil Neville
BBC Radio 5 live in Anderlecht
"The Anderlecht coach has been talking with the referee. He is not happy with some of the tackles Mathieu Flamini has been putting in.
"I think you are seeing a lot of long balls from Arsenal tonight because it is so congested in that midfield area.
"Jack Wilshere just needs to time his pass right. You just see him take that extra touch at times. He needs to work on that.
"Arsenal need to be a bit more patient, they are trying to force it."
But wait. Olympiakos have weighed in and lead 1-0 against Juventus thanks to a goal from former Fulham man and Swiss international Pajtim Kasami. Something might give in Group A where all four teams kicked off level on points.
Even when he gets it wrong, it's right! Cristiano Ronaldo is at the apex of a swift counter-attack, his touch for once is heavy but he somehow digs out a left-footed cross from right on the goalline and it almost lofts over the head of Simon Mignolet. The keeper just about claws it out as Karim Benzema closes in for a header.
Half-time - which is seven minutes away - can't come soon enough for the men in red.
BBC Sport chief football writer Phil McNulty at Anfield
"Liverpool have enough problems as it is - another is that they now have to chase this game and there is arguably no more devastating side in world football on the counter attack than Real Madrid."
Alexis Sanchez looks the man most likely to break the deadlock for Arsenal, beating a static backline to a ball over the top but duffing his shot over the top. Pace to burn.
Ashley Wilkinson:, external Brilliant header but again, where's the defence following the run? All stemmed from Coutinho playing fancy dan on his own 18.
Ohigho Musa:, external These Liverpool FC boys are naive when it comes to the Champions League stage.
Brett Mills:, external In one step over, Ronaldo shows more enthusiasm, movement and skill than Balotelli will in the entire 90 minutes.
More than half an hour gone and goals in only two games. Everyone needs a Ronaldo.
Mario Balotelli has had 15 touches, Cristiano Ronaldo 42. One in particular was very, very good...
Not right now they don't Conor - Liverpool are chasing white shadows...
Conor McNamara
BBC commentator at Anfield
"Anfield loves a big European night."
It's not all bad news for Liverpool with Basel, their likely rivals for second spot in Group B, down to 10 men at Ludogorets after midfielder Serey Die is sent off with the score still 0-0.