Damian Fogarty: Is it too simplistic to say the next goal (bound to be one) is critical & defines who wins this game?

James Adams: feel like PSG are getting outdone in the wide areas, perhaps they need to match Atalanta and go 3 at the back with Marquinhos and push the full backs forward

Kylian Mbappe has had a bright start with a few touches - including a cheeky nutmeg.

I said earlier Atalanta have more yellow cards than any Champions League team this year - 23. PSG have now joined them on 23.

PSG have lost all their three European games at Estadio da Luz - all against Benfica.

Here we go. PSG bring on Kylian Mbappe for the final 30 minutes. Pablo Sarabia is replaced.

Interesting. Atalanta bring off captain Papu Gomez for Ruslan Malinovskiy. Jose Luis Palomino replaces the booked Berat Djimsiti at the back

Atalanta defender Berat Djimsiti has had a few chances. This time he volleys into the side-netting.

It's getting a bit feisty. PSG midfieler Ander Herrera clips Papu Gomez and gets a yellow card.

Atalanta (23) have been shown more yellow cards than any other side in this season's Champions League.

Papu Gomez's free-kick is half-cleared to Marten de Roon, whose 30-yard piledriver flies over the bar. He apologises to his team-mates for such a speculative effort.

First PSG yellow card as Juan Bernat catches Mario Pasalic.

More fine footwork from Neymar with another nutmeg but then the offside flag goes up as he tries to find a team-mate.

Atalanta have picked up four yellow cards somehow, even though they look quite comfortable. Duvan Zapata is the latest to be booked.

It's about five months since anybody other than Neymar had a shot for Paris St-Germain in the Champions League.

Neymar has a go from the free-kick, which must be at least 30 yards out. It hits an Atalanta defender on the way and goes for a corner.

Atalanta clear the corner.

Marten de Roon fouls Neymar but the Brazilian gets away. He's eventually crowded out but ref Anthony Taylor comes back and books De Roon.

Atalanta are getting a change ready. Injury?

Another Atalanta corner as Berat Djimsiti's header from Papu Gomez's cross is deflected over.

But that following corner comes to nothing.

Atalanta have a corner now as Marten de Roon's long-range shot is blocked. The Dutch midfielder spent one season at Middlesbrough.

PSG are such a strange club. They won all three French trophies this season and yet their season feels like it's on the line here.