Out of nowhere Juventus are back in the tie as Paulo Dybala fires his first Champions League goal of the campaign, a composed low finish, after Bayern's makeshift defence is caught out for the first time.

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Great scenes in the Bayern end. Fans draped in red and white linking arms and jumping up and down on the spot. They're loving this.

Daniel Woodley:@juventusfc, external not at the races tonight. Look a poor side and @FCBayern, external making this look easy. The Italians need a miracle.

Clash of the European heavyweights? This has been men against boys at times. Juventus have been bullied from start to finish. It could get very ugly for the Italians before this is finished.

Outstanding by Arjen Robben as the former Chelsea man evades two challenges on the edge of the area before rifling past Gianluigi Buffon. Juve have a mountain to climb. Robert Lewandowski with the pass to set up Robben for his sublime finish.

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Juventus are struggling to string a couple of passes together. Their passing is awful compared to the zip and zest of Bayern's. It is far too easy for the Germans.

Bayern continuing to tease and torment their hosts. Arturo Vidal almost sets Robert Lewandowski free inside the Italian box before David Alaba fires just over. It's looking rather ominous for Juve.

There's a change for Juventus at the start of the second half - and it looks enforced rather than a tactical switch. Midfielder Claudio Marchisio is replaced by Brazilian Hernanes.

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It's been a German masterclass in Turin so far. Can Juventus stem Bayern's tidal wave of attacks or are Pep Guardiola's men going to wrap this tie up before the second leg? We're back under way.

Pat Nevin
Former Chelsea winger on BBC Radio 5 live

"Juve have been all over the place. It was a matter of time before Bayern were going to score. They looked totally and utterly comfortable."

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As you can see Bayern (right) have been camped in the Juve half. While Juve have barely left theirs. Do you think that will change after the break?

Francis Edwards: Juve being played off the park here, if there's a team to beat Barcelona then Bayern are that team, amazing stuff.  

Relentless - and utterly absorbing - from Bayern Munich. A big half-time talk required from Massimiliano Allegri.

At last Bayern have the away goal their play thoroughly deserves. Thomas Muller, guilty of a glaring miss earlier, stabs home after Juventus had failed to clear Arjen Robben's cross which was pulled back by Douglas Costa. 

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A bullet header by Arjen Robben from a corner fizzes just wide of the post. No let up from the visitors, who will be frustrated they are not leading. Juventus, on the other hand, will no doubt take a goalless draw now.

The good news for Juventus is they have now gone more than 14 and a half hours without conceding a goal. But how long is their back line going to hold out against Bayern, who are mounting wave after wave of attacks?