There is a big appeal from the Sevilla players for a penalty as Ocampos' shot from the edge of the box is blocked by the elbow of Dahoud. The Dortmund player had his back completely turned, though. No way is that a spot kick. It's the last act of the half.

Porto's Sergio Oliveira has one goal to his name and is looking for his second.

His free-kick is not cleared by the home defence before it eventually falls back to the Portugal international.

He strikes from the corner of the penalty area but Juve keeper Wojciech Szczesny is down well to hold on to it.

Haaland really is a marvel. He can go through nearly a whole half of football with barely any involvement and still end it with a goal. He has such a knack for sensing when to channel his energy and how to be in the right place at the right time. It is a quality worth arguably more than any other in football.

Fernando looks to drag his side back into the tie but after being set up on the edge of the box he fires wide, having slipped slightly during the execution.

Juventus have had 65% of the ball, but they need to do something special or their Champions League hopes will end again at the last-16 mark, just as they did last season.

Don't forget to stick your names on texts. Harsh on Szczesny?

He has helped Juventus win three Serie A titles in a row and was voted the best goalkeeper in the league last season. By the way, 43-year-old legendary Juventus goalkeeper Gianluigi Buffon is on the bench for the Italians.

How frustrated Sevilla must be. They've dominated this half and now find themselves behind in the leg and possibly out of the tie.

Marcos Acuna, who doesn't need an invitation to get aggro, gets himself a booking with a late tackle that symbolises that frustration.

Haaland (19) has now equalled Kylian Mbappé (19) for most Champions League goals before turning 21 years old. His tally also takes hinm level with Ole Gunnar Solskjaer for most CL goals by a Norwegian.

He has 30 goals in 29 games this season.

Machine.

The set-piece is neatly worked, passed wide before being slung in. Dortmund hold firm, though. They have to remain so as the away side drive forward again and again. A couple of blocks in the box prevents Hitz being tested.

Harish Lakka: I never found Pirlo's management clever. May be Cristiano should head back to Old Trafford and meet Messi at The Ethihad? This looks like a season with no trophy for Juve.

Seth Gogo Egeh: If Juventus were interested in winning the Champions League, they wouldn't have hired a rookie coach in Pirlo in the first place.

Juventus are in the final of the Coppa Italia, where they face Atalanta on 19 May. But their vice-like grip on Serie A may be coming to an end as they are only third, after winning the title in each of the past nine seasons.

Suso is fouled midway inside teh Dortmund half. Delaney is the offender. This is a useful free-kick for Sevilla to test the German's defence.

Sevilla are sharper to pretty much every ball. Suso tries to send a cross deep into Dortmund territory but over-hits it and sends it flying out of play over Lucas Ocampos.

Juventus' Adrien Rabiot tries his luck with a hugely ambitious 30-yard volley, but he kicks it into the ground and it bounces a few times before reaching Agustin Marchesin and he dives to his right and holds on to it.

Ah, no need to worry. A bit of Deep Heat* rubbed in and Diego Carlos is fine to carry on.

*Other therapeutic rubs are available.

We have not seen anything from CR7 just yet, but another chance falls to team-mate Alvaro Morata.

Juan Cuadrado is again involved for Juventus as he crosses from the right, Porto defender Wilson Manafa makes a complete mess of it as he misjudges the flight of the ball, it falls for Morata and he shoots at goal but away keeper Agustin Marchesin gets his body in the way.

Morata may have been better off with a square pass for Ronaldo.

Image source, Getty Images

Sevilla have a man down in their box. Diego Carlos looks to be holding his right hamstring. Might be the end of his night.

Professor Ndebele: Calm down people, Juventus have Ronaldo, hat trick from him?

This tie is in danger of slipping away from Juventus very quickly. Jesus Corona, also known as Tecatito if you prefer, shoots hard and low from an angle but Wojciech Szczesny gets his body behind the effort.

The ex-Arsenal man is busy as he then has to save one from Otavio.

Zaidu Sanusi then unleashes one at the Juventus goal on the half-volley but it was always sailing over the bar.

Dortmund just can't get Haaland into the game. They are being forced back and every ball aimed in his direction is rushed and poorly executed.