Fine work again by Sevilla in attack almost presents them with a shooting chance, but after halting to beat his sliding man at the byline, Suso can't quite pick out a team-mate on the edge of the box.

The Spanish side are very much on top.

Juventus now need to score at least twice tonight or they will be out. If they get two and it is 2-1 after 90 minutes it will be extra time on the cards, and maybe penalties.

Andrea Pirlo's side will have to find three goals to win without the need of a shootout.

Dortmund haven't found their stride at all yet. And now they have a man in the book as Morey goes in late on Oscar Rodriguez. It was the Dortmund defender's own poor touch that meant he went chasing it and committed the foul.

Oh, so nearly the opening goal. Lucas Ocampos does really well, beating two men en route to the edge of the box. He lays the ball off to Suso who flashes a shot just past the post of the Dortmund goal.

Merih Demiral clatters into the back of Mehdi Taremi, who was trying to turn to get a shot away.

Juventus need Szczesny to be a hero here.

Dortmund's first real effort at goal comes from Mahmoud Dahoud, who slices a shot well wide.

The chance was set up by Thorgan Hazard, who relinquished possession through a cross a tad early. He had time to make something of it himself. Seemed to panic a bit.

Porto boss Sergio Conceicao said yesterday that he had no intention of sitting back on their first-leg lead.

And that's certainly been the case so far. They could have conceded two and also scored two already. Otavio shoots at goal for the Portuguese side, but his shot flies past the post.

A frantic and thrilling start in Turin. Just a shame there's no fans in this one as they would be loving this action.

What advantage do players really get from placing a ball a fraction outside the corner quadrant? Just stick it in the middle and get it swung over.

Sevilla try to pull a fast one but the assistant is alert to it. The Spanish side again waste the corner, but they remain on the front foot.

Haaland hasn't had a sniff yet.

Porto look vulnerable in the air and Juventus have another headed chance.

Juan Cuadrado whips the free-kick from the right to the back post and Aaron Ramsey gets free with a glancing header, but sadly for the Welshman, the ball ends up just over the top.

Encouraging stuff from Sevilla. They have Dortmund penned in and force a corner. They can't make anything of it, though, with Suso initially hitting the first man and then seeing his delivery nodded away with his second attempt.

A brilliant start to the action in Turin. This time Porto go close. Leonardo Bonucci makes a vital block but Juventus can't clear and Mehdi Taremi sends in a looping header from 10 yards out.

Juve goalkeeper Wojciech Szczesny would've been beaten but the crossbar comes to his rescue.

Sevilla have started on the front foot. Julen Lopetegui is on his feet, prowling his technical area nervously.

Juventus nearly get us level on aggregate after only three minutes. Juan Cuadrado sends in a cross from right from deep and it finds Alvaro Morata, six yards out and central.

The ex-Chelsea man gets a powerful header on it and Porto goalkeeper Agustin Marchesin springs up to get a hand to it and keep it out. Great save, but what a chance for Juve.

Early hit for Lucas Ocampos, who cuts inside and forces Marwin Hitz to parry with one strong hand.

I'm confident we're going to see some goals here. Dortmund have arguably the continent's finest forward and Sevilla have to come out and score at some point.

On a less upbeat note, Signal Iduna Park really does lose a lot of its charm with no fans providing that wall of noise.

Image source, Getty Images

A nervous start for Juventus as Mateus Uribe has the first chance of the match for Porto. He is free on the edge of the area, but can only pull a low shot wide.

Here we go.

Image source, Getty Images

Juventus will need to stop the threat of Iran forward Mehdi Taremi and Portugal international Sergio Oliveira, who have both scored 10 goals for Porto in the Primera Liga.

Mali striker Moussa Marega will also be a handful and he scored in the first leg in Portugal.

If Porto get a penalty, Mateus Uribe may not want it. He missed for Colombia in their last-16 shootout loss against England at the 2018 World Cup.

Youssef En-Nesyri is the man to watch for the Spanish side. The Moroccan international has netted 17 times for Sevilla this season, including four in the Champions League.

Lucas Ocampos and Suso either side of him are no slouches either. They've got 11 goals between them.

Further back, Jules Kounde has been impressing Premier League scouts, including those from Man Utd apparently. He's got a real job on his hands minding Haaland.