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

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, who promptly passed it back. He completely undercooked his delivery, however, allowing Taremi to steal in and nick the ball before firing it home from a couple of yards out.

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.