Messi opened scoring with low shot
Argentine dinked a world-class second
Neymar clean through for third
Something else from Neymar, he has three men right on him, touch tight, but he somehow shimmies between them all and emerges with the ball too. He tries a scoop pass to Luis Suarez but it is cut out. Quality though.
European football writer Andy West at Nou Camp
"Barca are slowly getting into the second half now but Bayern have been doing so well to deny their space by covering the width of the pitch, which is how the hosts generally like to start their attacks."
Image source, ReutersBarca kick it up a touch. Lionel Messi starts it again on the right, rolls his man and finds Neymar, back to goal. The Brazilian dummies a pass to Luis Suarez and instead lays it off for Messi to run around and crack in a left-footed strike from 22 yards. He hits it as clean as a whistle but it's right at Manuel Neuer.
Former Liverpool defender Mark Lawrenson at the Nou Camp
Radio 5 Live
"Bayern Munich are in control of the game at the moment."
Image source, Getty ImagesWhere there is Messi, there is hope though. Lionel goes through the gears to leave two men trailing in his wake and Juan Bernat has to haul him down by his collar. Booked.
Image source, ReutersLahm, Rafinha, Lahm, Alonso, Lahm, Rafinha - over the top to Thomas Muller. A late offside flag calls a halt to a scintillating bit of play from Bayern Munich. That was top drawer - and they have had a brilliant 10 minutes. The better side right now. No doubts.
Githu Gee: The fitness levels of these two teams is unbelievable. Amazing. Premier League is miles behind
Danny Cheng: Impossible to beat Neuer. Suarez's recent form shows he's capable of being the impossible. My money's on him.
Paul Collins: As good as this game has been, imagine how much better it could have been had robben and Ribery being fit for Bayern.
Join the debate at #bbcfootball, external, pop on to the BBC Sport Facebook page, external or BBC Sport's Google+ area., external
You can also text us on 81111 in the UK only - don't forget to say who you are and where you are texting from.
Andres Iniesta showed he has still got it with a wonderful assist against PSG in the last round and he is at it again, beating two men with a jinking run before going down from Medhi Benatia's challenge.
Benatia is booked but he couldn't do much about that.
Pep Guardiola applauds his defenders though. A draw tonight is a great result for him.
Image source, Getty ImagesExcellent few minutes for Bayern but Lionel Messi then comes alive, skinning one man before finding Ivan Rakitic - but his cross is easily cut out.
Bayern could write the book on pressing, they are swarming all over Barcelona. Dani Alves has his pocket picked again.
Image source, Getty ImagesBayern Munich didn't have a shot on target in the first-half of a Champions League away game for the first time since May 2013, also v Barcelona.
Bayern start at that 100mph intensity again and it pays off, Robert Lewandowski gets onto a loose ball and Dani Alves can only pull him back. That's a booking and a free-kick in a dangerous spot...
Into the wall from Xabi Alonso.
What tactical surprises have Bayern Munich got up their sleeves? We are under way in the second half.
Hull midfielder David Meyler tweeted:, external What a game this is all we need is a few goals!
Image source, APHere come the sides...
A reminder of this evening's other breaking news.
The Spanish football federation says it is suspending all end-of-season games in disputes with the government, including over TV rights.
A federation statement (in Spanish) said it was also unhappy with receiving only 4.55% of pools revenue, though it said it was still open to dialogue.
Image source, ReutersAll matches will be suspended from 16 May, including the domestic cup final.
In the top division, Barcelona lead La Liga rivals Real Madrid by two points, with only three games left to play.
In the statement, the federation said it acted after three-month talks with the government had failed to resolve the dispute.
The Spanish government has so far made no public comment on the issue.
Abdul Said: I can see nothing wrong in Bayern Munich's style of play, it is just like watching Van Gaal's United improved version of three at the back .
Curtis Williams: Jose Mourinho must be at home having kittens watching this game. Must be a bus strike in Barcelona.
Adam Southorn: The referee has been brilliant letting the play go, a breath of fresh air in big European games.
Get in touch at #bbcfootball, external, pop on to the BBC Sport Facebook page, external or BBC Sport's Google+ area., external
You can also text us on 81111 in the UK only - don't forget to say who you are and where you are texting from.
TV, radio and online, the pundits have lost their minds about that Bayern Munich tactical shape in the opening 20 minutes or so. It was great fun though.
Neil Lennon
Former Celtic manager on BBC Radio 5 live
"It has been so tight - eachy-peachy as I like to say - but I think that one goal either way will open the floodgates. It will force the other side to come out and play a bit."
European football writer Andy West at Nou Camp
"Pulsating first half. Even watching it is tiring. And for the players, the mental effort in adjusting to the opposition's tweaks in tactics must be another major strain.
"Bayern were under heavy pressure for much of the half and will be happy with the stalemate."
Image source, Getty Images