Porto v Juventus: Champions League round of 16, first leg – live!

75 min: Alvaro Morata appeals for a penalty after being dispossessed by Chancel Mbemba, who was ungainly but didn’t break any laws. The Spaniard has to settle for a corner instead.

73 min: Bentancur slides in to deny Uribe the opportunity to send a cross into the Juve penalty. From the ensuing corner, Sergio Oliveira’s corner is cleared at the near post.

71 min: Good work from Ronaldo, who gallops down the left flank before drilling a low cross towards Chiesa. His shot is saved by Agustin Marchesin, but the flag goes up. ALvaro Morata was offside as he lurked hoping to pounce on any football-shaped and sized crumbs dropped from Marchesin’s table.

68 min: Enterprising stuff from Jesus Corona, who standing with his back to the Juve goal about 20 yards out, flicks the ball up in the air to set up his own acrobatic bicycle kick. His effort is tipped over the bar by Szczesny but wouldn’t have counted if it had gone in. The referee had spotted some infringement or other.

67 min: Porto substitution: Moussa Marega, who scored Porto’s second goal after 20 seconds of the second half, goes off. He’s replaced by Marco Grujic, the Serbian midfielder on loan at Porto from Liverpool.

66 min: Rodrigo Bentancur tries his luck with a shot from distance. He used hardly any backlift but spanked the ball with venom. Over the bar, but not by much.

65 min: Morata gets the ball and drives forward, only to be fouled by Mateus Uribe.

64 min: Juventus substitution: Alvaro Morata on for Tyler McKinnie.

62 min: Matthijs De Ligt gets booked retrospectively for a foul he committed at the beginning of my entry on 59 minutes. The referee had played advantage at the time.

57 min: Now Kulusevski is penalised for controlling the ball with his hand and Porto use the break in play to make a substitution. Luis Diaz replaces Otavio.

56 min: Dejan Kulusevski has a half-chance cut out by Merih Demiral and it’s about all Juventus have had by way of a chance so far in this half.

52 min: Sergio Oliveira pops up in the penalty area at the other end of the field, bringing a smart one-handed save out of Wojciech Szczesny, who looked slightly bamboozled and had to shift his weight from one foot to the other to reach the ball. Perhaps the shot took a deflection – Juventus are getting pummeled here.

50 min: Juventus win a corner and the ball is flicked on at the near post by Sandro. Sergio Oliveira hacks clear.

48 min: Porto galloped upfield from the kick off and the ball was pulled back to Marega in the penalty area from the byline. His first touch was sublime and took him away from the Federico Chiesa before he slotted a fairly tame shot into the corner past Szczesny, who was beaten at his near post.

Hells bells! That is ridiculous – another great start for Porto, as Moussa Marega slots the ball into the corner after 20 seconds of the second half.

46 min: Play redsumes with no changes in personnel on either side. I am surprised that Alvaro Morata hasn’t been sent out to bat by Pirlo, as Dejan Kusulevski has hardly had a kick.

Peep! That’s your lot for the first half, which got off to the worst possible start for Juventus when Mehdi Taremi pounced on a Rodrigo Bentancur error to nick an opportunist goal. Juve have been surprisingly sluggish and already look genuinely berfeft of ideas. I suspect we’ll see a change or two from Andrea Pirlo before too long. It’s been so comfortable for Porto, whose defence has looked remarkably assured.

45+1 min: Ronaldo tries to run into the Porto penalty area from the left but is crowded off the ball.

45 min: Ronaldo wins his team a corner after one such excursion. Bentancur’s delivery is headed clear, despite Ronaldo’s best efforts to get to the ball.

44 min: We’re almost at the break and Cristiano Ronaldo has had just one touch in the Porto penalty area. He’s getting frustrated too, dropping deeper and deeper in a bid to get more time on the ball.

41 min: Another free-kick, from the same area. The ball is sent towards the far post again and breaks to Adrien Rabiot, whose overhead kick is saved by Marchesin, who bats it clear. It was a spectacular looking effort but lacked real venom. It was also Juve’s first shot on target.

40 min: Juve free-kick, wide on the right after a Sergio Oliveira foul on Matthijs De Ligt. Bentancur finally gets one right and picks out Cristiano Ronaldo at the far post. His downwards header doesn’t trouble Marchesin.

39 min: Juve corner. The ball’s sent into the Porto penalty area, where Agustin Marchesin punches clear.

36 min: Not for the first, second or third time in this half, Juve try to pick out Cristiano Ronaldo with a long diagonal pass lofted towards the corner. Porto clear, again … and one suspects their excellent defenders continue to clear those kind of deliveries all night.

34 min: Juventus substitution: Giorgio Chiellini off, Merih Demiral on. I have no idea what’s wrong with Chiellini, who didn’t appear to be struggling with any obvious injury. Alex Sandro takes the captain’s armband.

32 min: Porto have 11 men behind the ball as Juve try to find a way through. The Italian side will have their work cut out – this is defence is incredibly disciplined.

29 min: Juve play a ball from deep towards Ronaldo, but he’s beaten in the air on the edge of the Porto box.

28 min: Zaido Sanusi gallops down the left touchline and is shoved off the ball by Bentancur. This time he doesn’t get a free-kick and harangues the referee at great length. Karma, as they say, is a bitch.

26 min: Pepe steps in to welly the ball clear after a Juventus attack featuring Cristiano Ronaldo and Tyler McKinnie runs into a blue and white wall of resistance on the edge of the Porto penalty area.

25 min: The camera cuts to Andrea Pirlo, standing in his technical area. The poker face is gone – he looks genuinely concerned and I don’t blame him. His Juventus team has been dismal in the opening 25 minutes.

22 min: A diabolical clearance from Szczesny flies straight to Sergio Oliveira, about 30 yards from the Juve goal. He sends the ball back with interest, his goalbound shot taking a crucial deflection off Matthia De Ligt. Nothing comes from the ensuing corner. Juve are really struggling in the face of Porto’s high press.

20 min: From undercooking passes to overcooking them – Rodrigo Bentancur tries to pick out Cristiano Ronaldo with a crossfield pass to the touchline, but sends the ball into the stand. The Uruguayan needs to get his cross-hairs aligned.

18 min: Zaido Sanussi wins a free-kick after falling over and screaming loudly near the touchline, with Danilo nearby. The Juve right-back proclaims his innocence with no little justification, laughing at the referee for falling for Sanusi’s grift.

15 min: Alex Sandro canters down the left wing before sending an outswinger of a cross to the far post. Federico Chiesa makes good contact on the volley but his effort is put out for a corner. Moments after that’s taken short(ish), Juve are flagged for offside as the ball is sent into the Porto penalty area.

13 min: Porto win a free-kick, wide on the left, halfway inside the Juve half. They win themselves a corner, which Sergio Oliveira takes short. The ball is then played crossfield to Chancel Mbemba, whose awful first touch puts the ball out of play for a Juve throw-in. It’s like watching two pub teams!

11 min: The slapstick continues as Juve players Adrien Rabiot and Dejan Kulusevski collide with each other, the young striker coming off worse. Any minute now we can expect to see a couple of members of the Juve backroom team walking across the pitch at carrying an extremely large pane of glass.

9 min: Juventus’s players still look a little shell-shocked after that very early setback. They’re playing at an extremely pedestrian pace and Cristiano Ronaldo has barely had a touch of the ball yet.

5 min: On the touchline, Juve boss Andrea Pirlo is wearing his best poker face, but he must be furious with his Uruguayan midfielder. Quite what he was doing on the edge of the six yard box when Szczesny was in possession is anyone’s guess, but his woeful pass back to the goalkeeper immediately after receiving the ball from him will have infuriated his manager.

2 min: That is an absolute shocker from Juve. Their goalkeeper, Wojciech Szczesney passed the ball about five yards to Rodrigo Bentancur on the edge of the penalty area, who promptly passed it back. He completely undercooked his delivery, however, allowing Taremi to steal in and contest the fifty-fifty ball, block the keeper’s attempted clearance and send it into the back of net.

The hosts lead! With just over a minute on the clock, Mehdi Taremi scores for Porto!

1 min: Juventus get the ball rolling stroking the ball around in their own half before moving it forward.

Not long now: Carlos Del Carro and his linesmen are first out on to the pitch, followed by the players of Juventus who are wearing orange shirts under their black and white tracksuit tops. Their shorts and socks are also orange. Porto’s wear blue and white striped shirts, blue shorts and white socks.

epe and Giorgio Chiellini exchange pennants and a handshake in the centre-circle and play is about to begin. First, there’s time for a warm embrace between Portugal and former Real Madrid team-mates Pepe and Cristiano Ronaldo.

Some pre-match natter: Juventus may be hot favourites but they are unlikely to have it all their own way in this tie. Porto’s defence conceded just three goals in the group stages, all of them in their opening game against Manchester City.

Interestingly, Francisco Conceicao is on the bench for them tonight. The 18-year-old winger is the son of head coach Sergio Conceicao and made his senior debut against Boavista last weekend.

Porto: Marchesin, Manafa, Mbemba, Pepe, Sanusi, Uribe, Otavio, Oliveira, Corona, Taremi, Marega

Juventus: Szczesny, Danilo, De Ligt, Chiellini, Alex Sandro, Rabiot, Bentancur, McKennie, Kulusevski, Chiesa, Ronaldo

Tonight’s referee: Expect Italian accusations of pro-Iberian bias if it all goes wrong for Juve tonight, as Carlos del Cerro leads an all Spanish team off match officials in Porto.

“Porto are different to us,” said the Juve boss. “In the league they are more attacking, while in Europe they are more cautious. We try to play another way, but sometimes we also have to defend.

“The Champions League is a unique competition. There are so many teams fighting to win, everyone wants it, and it really depends on which moment you’re in when you face teams. It’s important to be mentally ready.”

“We will give Juventus problems as Porto also have something in their DNA,” said the home side’s manager during his pre-match press conference. “We have a winning mentality regardless of the opponent. We need to be aware that our approach has to change at different times of the game while always looking for the positive result.”

On the threat of Cristiano Ronaldo. “Cristiano can decide a game at any moment and in the final third he is a fabulous player,” he said. “The best in the world without a doubt. We have to be solid, compact and cohesive. We must understand what space Cristiano, Morata, Kulusevski or whoever plays up front wants and deny it them.”

Early Juventus team news

With full-back Juan Cuadrado out with a muscle injury, Danilo and Alex Sandro are expected to bookend the Juventus back four against their former club. Having missed his side’s past two games, Leonardo Bonucci has failed to recover in time for this encounter, which means Giorgio Chiellini will almost certainly partner Mattijs De Ligt at centre-back. Aaron Ramsey, Arthur and Paulo Dybala all look set to miss out too. Cristiano Ronaldo will start up front for the visitors but reports from Italy suggest the out-of-sorts Alvaro Morata may be dropped for Dejan Kulusevski, a 20-year-old Swede of Macedonian extraction.

Early Porto team news

Sergio Conceicao is without full-backs Nanu and Saido Sanusi, in a state of affairs that means WIlson Manafa and Malang Sarr may be called on to deputise ihn a back four marshalled by our old friend Pepe. Midfielder Otavio is also absent with a soft tissue injury.

The champions of Portugal and Italy go toe to toe in Porto for the first leg of a tie Juventus are hot favourites to win. They come into this match on the back of a defeat at the hands of Napoli last weekend, while their hosts have drawn their last four games on the domestic front. Kick-off at the Estadio do Dragao is at 8pm (GMT) but stay tuned in the meantime for team news and build-up.