So a frustrating night for PSG and one of huge mixed emotions for Barcelona.

The Spanish side have managed to win and lose simultaneously. 

There's more to come in this soap opera.

I'll see thee.

After six minutes of injury time, it ends goalless in Paris.

A frustrating night for PSG. They remain three points behind Ligue 1 leaders Monaco. 

Those two goals means Lionel Messi has now scored 34 goals in 34 games. You wouldn't have known it from his face when that winning penalty went in. It was an expression more of anger than joy, one that questioned 'how did we get into this?' as opposed to 'I'm glad we got out of it'.

Meanwhile, in Paris, it remains 0-0 between PSG and Toulouse. A frustrating night for Unai Emery's title-chasing side. They have five minutes to claim all three points.

Barcelona's win moves them up to second in La Liga, one point behind Real Madrid, who have two games in hand.

That won't be the focus in the days after this game, though. Luis Enrique is going to be asked a lot of uncomfortable questions shortly.

There are cheers at the final whistle, but they are either of relief or very, very hollow. Barca have won the game, but this will only prompt more questions.

Luis Enrique's side may have had 75% of possession but they struggled to hurt Leganes, who had enough chances to win the game themselves.

The cracks are covered with tissue paper.

Into the dying seconds. Neymar is fouled. That looks to have ended any remaining hope Leganes had of a late reprieve.

Ooooohhh! So close to an equaliser. The Leganes corner is cleared but picked up by El Zhar who unleashes a fierce shot from distance that flashes just past the post. Only a yard in it. Barca breathe again.

But wait, Leganes have a corner...

Poor Leganes. They were so close to a monumental result. They deserved their point. They have had it snatched away.

Five minutes have been added. 

Barcelona have an escape route! Neymar cuts in from the left and is sent to ground by a lunging tackle from Mantovani. It is cruel on Leganes, but it is a pen.

Blatant time wasting by Siovas, who has a bit of cramp and takes an age to limp off to be replaced by Pablo Insua. It earns him plenty of whistles and a yellow card.

Image source, Reuters

Big save from Herrerin! Messi floats a pin-point pass over the top for Neymar, who has the ball taken right off his toe by the away keeper. Herrerin takes a knock for his trouble and eats into time to receive some treatment, much to the home fans' annoyance.

Six minutes left for Leganes to survive and seal a famous result.

Three changes for Barca. In the space of a minute, on come Andreas Iniesta, Denis Suarez and Jordi Alba. Rafinha, Andre Gomes and Digne depart. Can the old guard rescue them?

Oooh, this could be controversial. Montovani, who has already seen yellow cynically blocks Messi on the break. It is a yellow-card offence but the referee keeps his cards in his pocket. 

As you'd expect, Luis Enrique is not a happy man.

Leganes don't just want a point, they want all three! They come forward through Machis down the left but he is muscled off the ball and Barca clear.

Messi takes again but misses the target, floating his effort over the bar. Poor.

Foul. Free-kick on the edge of the box for Barca. Big moment coming up...