62 min: Pellegrini tests Casillas with a fixed ride from 25 meters away. Casillas deals with it.
57 min: Porto won a corner on the left, the cunning Brahimi won it. Telles sends an outswinger and Danilo looks at the nearby post office. This is the nearest postage.
55 min: El Shaarawy shoots miles from 25 meters away. That's not good for Roma.
51 min: The Roma try to push up and play with more energy. Let's see how long it takes.
48 minutes: Roma's best hope may be to impose a mistake on Casillas by simply putting a cross in the box. A bit of a knock on Porto's goalkeeper almost causes a catastrophe, but Cristante can not take advantage of it.
Halftime: Roma 0-0 Porto
Let's be charitable and call it a close game.
45 minutes: Pellegrini remains down after a collision with Tiquinho. The game stops so he can be treated. He's fine.
42 minutes: El Shaarawy almost breaks through on the left side. But he does'nt do it.
37 min: Fazio chooses Dzeko with a beautiful pass from the depths. The striker takes the ball down brilliantly, cuts past Militao, moves inside the area and looks secure as he pulls back his right foot. Only to defeat Casillas, he strikes a powerful shot against the right post and the ball jumps to safety! It was a wonderful game to the finish.
35 minutes: Pellegrini sends another transfer, this time a corner, but Dzeko walks over.
34 minutes: A free kick for Roma on the right side. Pellegrini gets it all done and Manolas, who beat Barcelona last season, can not rise high enough in the middle. The defender was not marked.
32 minutes: Roma has not had a decent attack for the first 10 minutes. They look very one-dimensional.
30 minutes: Otavio winds his way from the right into the pits and finds Fernando, who turns and shoots directly at Mirante.
29 min: A small inconsistency in the middle, after Fernando has objected to El Shaarawy, who nibbled at his heels.
27 minutes: Kolarov crosses from the left. Casillas does not scratch it convincingly. Moments later, Cristante Casillas shoots straight from 18 meters.
25 min: Porto begins to dominate the property. The ideas of the Roma seem to be too short, although Dzeko has every chance to come up with something.
22 minutes: Porto will be satisfied with the start of their work. Apart from a few confusing moments in the back they mostly kept the Roma at a distance and looked strong in midfield. It would come as no surprise if they would also score a goal.
17 minutes: Porto attacks on the left and raises the ball in the Roma area. The defense is not great. A faint distance lands at the foot of Otavio on the edge of the area, but he is not assertive enough and the opportunity disappears.
14 minutes: Porto has set himself up carefully. They feel that Roma could be frustrated here.
11 minutes: Porto makes a free-kick from the free kick. Roma counter immediately. Dzeko runs down the left and bends a cross in the middle. Casillas dives again, but Brahimi does not get the cry and comes in to deal with it. For a moment I thought it would be an own goal, but Brahimi comes away.
10 mins: Fernando rumbles on the left and wins a free-kick from Florenzi. This is a good opportunity to load the box for Porto.
7 minutes: El Shaarawy looks left again and combines with the overlapping Kolarov, who is always an option in attack. The left-back shot a low ball into the six-yard box and almost found Dzeko, but Casillas claimed the cross.
4 minutes: Porto is trying to put Manchester City in the back, just for Felipe, to make a total mess out of it. He loses to Pellegrini and reinforces the mistake with a weak challenge that allows Roma to attack. El Shaarawy walks down the left side, struggles around and tries to put on Cristante, who is being attacked by Herrera. That was such a disaster for Porto.
3 minutes: A fast start with a lot of intensity in midfield. It looks pretty much the same.
Have a look! The Roma in their red jersey set the game in motion. You step from right to left in the first half. De Rossi immediately pumps the ball forward and for a throw.
Before the kick-off, there is a minute's silence that Emiliano Sala can remember. Halfway respectful applause breaks out, which is a nice touch.
The following Porto players miss the next match when they are booked: Éder Militão, Otávio and Pepe. Of course Pepe. The Roma have no such worries.
The teams are in the tunnel and the Roma fans make an absurd noise at the Stadio Olimpico. You know how to increase the volume there in a big night. I was there when they defeated Barcelona last season and my ears just recovered.
Roma: Mirante; Florenzi, Manolas, Fazio, Kolarov; Pellegrini, De Rossi, Cristante; Zaniolo, Dzeko, El Shaarawy. Subs: Olsen, Jesus, Marcano, Santon, Pastore, Kluivert, Nzonzi.
Postage: Casillas; Militao, Felipe, Pepe, Telles; Herrera, Danilo, Fernando; Otavio, Soares, Brahimi. Subs: Vana, M. Pereira, Costa, Hernani, Torres, Lopez, A Pereira.
Referee: Danny Makkelie (Netherlands)
Hello. The last stages of the Champions League: a fun place if you do not belong to the superclubs. Shocks are rare in this competition and the unpredictability is limited. If you do not have hundreds of millions every summer to push yourself around, you can probably forget the profit. If you do not have top players, history suggests it's only that far you can go.
But it's a knockout competition, so you never know, and both sides will assume they have a good chance of reaching the quarter-finals. As second in her group, Roma must be relieved that you have not landed any of your Barcelona or Bayern Munich or PSGS. Porto has managed to avoid its Liverpool, Atletico Madrid and Manchester United teams. At Stadio Olimpico you can play everything tonight!
And it's also very hard to call. Choosing a favorite is not easy. Porto, who have reached the top of the Portuguese league and have been undefeated since October, will look forward to the second leg at home. Sergio Concecaio will be confident that he has enough experience and firepower to reach the last eight. While the Roma have a difficult season in their home country, Eusebio Di Francesco's side have been sixth in Serie A after mixed results, losing 1-1 to Fiorentina at Coppa Italia last month. The Italians have reached Barcelona on the way to the round of 16 Last four years last season and should represent a rise in the class for Porto, who led a group with Galatasaray, Lokomotiv Moscow and Schalke. Conclusion: everything can happen. And that's the way it should be.
Kicking off: 8 pm GMT, 9 pm in Rome.