Ohh yes, beautiful.

Barcelona get two goals back and are half way towards a Champions League miracle.

Can they keep it going in the second half?

Image source, AFP

Hesitation from Kevin Trapp, who comes for the free-kick but then turns and runs back to his line.

Fortunately for him, a team-mate manages to head the ball away.

Thiago Silva comes through the back of Luis Suarez and leaves his mark on the Barcelona man.

Last chance in the first half...

Neymar's corner is poor and headed away by a visiting defender, but it is coming right back at PSG.

Barcelona are the ones ending the first half on top, like they started it.

Javier Mascherano goes forward and earns a corner...

Three minutes of added time. Can Barcelona get one more?

Half-time in Dortmund and it is all square on aggregate.

Nice.

PSG striker Edinson Cavani is sent tumbling to the deck under a challenge and the Uruguayan does not like it.

He gestures towards the referee for a card...

...but gets a yellow of his own.

Hah!

Barcelona were pressing for a second goal...and get it five minutes from half-time.

It is not the prettiest they will see at the Nou Camp this season, but the home crowd will not mind a jot.

Skipper Andres Iniesta chases down a lost cause, when Marquinhos was in charge of the situation, but the PSG man dawdles and allows Iniesta to get to it.

The Barcelona midfielder shows brilliant awareness to backheel it into play, Kevin Trapp tries to punch it away but only hits the ball onto Layvin Kurzawa.

The left-back has lost his bearings, mis-cueing the ball into his own net.

Pure panic from PSG and they are very much under it now.

Image source, AFP

MSN were appearing offline in Paris, but are very much online today.

The S, Suarez, tries to reach a backheeled pass by Ivan rakitic, but runs out of pitch and the chance disappears.

Nicely poised at Signal Iduna Park, level on aggregate.

Dortmund have had the better chances but have not been able to convert them.

Image source, Getty Images

An infringement from Sergio Busquets sees him go into the referee's notebook. He will miss the next match, should Barcelona get through.

35 minutes played at the Nou Camp.

Sloppy play from Adrien Rabiot, caught in possession deep in his own half.

The ball is played by Lionel Messi to Luis Suarez down the right, but the Uruguayan's low shot is easy for Kevin Trapp.

Oh, Rafinha should be doing better here. He ghosts in on the right side of the area, but his low cross is so tame and Kevin Trapp can throw his body at it and gather.

Then Neymar goes down in the box under a coming together with Thomas Meunier, but the referee waves away the appeals.

The Brazilian went down a little easily there.

Image source, Getty Images

Barca have to be careful and almost get hit on the counter.

Ivan Rakitic is caught in possession and Lucas Moura trots forward, but the Brazilian's fizzing low drive, which takes a bounce off the turf, is straight into the bread basket of Marc-Andre Ter Stegen.

Tom Rostance, whose name you may recognise as one of the BBC Sport website's stalwart text commentators, has somehow been given some time off to enjoy a trip to Dortmund.

Has he been given a pay rise that I don't know about??

BBC Sport app users may need to follow the link.

PSG players getting stuck in. This time Thomas Meunier flies in and trips Neymar.

From the resulting free-kick, Gerard Pique gets highest to head an effort at goal but is caught offside.

Smart play from Barcelona on a corner as Gerard Pique is involved.

He exchanges passes with Neymar and the ball reaches Andres Iniesta.

The Spaniard winds a right-footed effort up, but strikes it over the crossbar.

Lionel Messi's free-kick is straight into the wall.

Not his best effort.

Image source, AP