Cuisance has made a difference since coming off the bench, but Marseille have not created anywhere near enough chances in the second half to find a way back into the game.
90'
Four minutes of stoppage time...
89'
Marega's night is over, and he leaves the field knowing he played a huge part after finding the back of the net.
88'
M. Taremi enters the game and replaces Otávio.
M. Grujić enters the game and replaces Sérgio Oliveira.
Romário Baró enters the game and replaces M. Marega.
Another substitution in midfield as Grujic replaces Sergio Oliveira.
86'
Strootman has been on the pitch for a matter of moments but he is already carded after a poor tackle.
85'
K. Strootman gets yellow.
Fábio Vieira enters the game and replaces J. Corona.
That shot is Corona's last involvement tonight as he is replaced by Vieira for the final five minutes of regulation time.
82'
K. Strootman enters the game and replaces B. Kamara.
M. Aké enters the game and replaces F. Thauvin.
Veteran midfielder Strootman is now thrown on and he replaces Kamara in the middle of midfield for Marseille.
Villas-Boas brings off Thauvin, with Ake on in his place.
79'
Álvaro González gets yellow.
Gonzalez is now shown a card after a needless foul while racing back towards his own goal.
77'
V. Germain enters the game and replaces D. Benedetto.
Benedetto has had to endure a tough evening tonight, but he can now watch on from the stands, with Germain coming on for Marseille.
Minute
Description
75'
S. Nakajima enters the game and replaces L. Díaz.
Luis Diaz's evening is over, he is replaced by Nakajima for the final 15 minutes.
69'
L. Díaz has scored a goal for Porto! Assist by J. Corona.
Corona has been a constant threat tonight, and he gets his second assist of the evening thanks to a perfectly-weighted backheel.
WHAT A GOAAALLLLL - PORTO 3-0 MARSEILLE - Luiz Diaz wraps things up for Porto with a beautiful finish on the counter-attack but the praise has to go to Corona. He attacked Marseille's defence with power and pace, shaped to shoot before backheeling the ball into his team-mate. Luis Diaz did the rest, firing past Mandanda to make it three. Superb from the home side.
65'
M. Cuisance enters the game and replaces M. Sanson.
Luis Henrique enters the game and replaces D. Payet.
A second change for Marseille sees Henrique enter the fold, in place of Payet.
Sanson's night is over and he is replaced by Cuisance. The midfielder is loan from Bayern Munich and will be hoping for a big display to impress his new club.
64'
J. Amavi gets yellow.
Amavi is shown a yellow card, and he is a lucky boy. His poor touch gave Otavio a chance to attack, and he has gone over the top of the ball and crushed Otavio's ankle in the process.
61'
Marseille need to get their flair players into the game. Payet, Sanson, Thauvin have barely had a kick in the second half, and they are not going to get a goal back without them.
58'
B. Kamara gets yellow.
Kamara is shown a yellow card after a sloppy foul in midfield after he was turned with ease.
57'
The chances are few and far between in this second half, with Sanusi's header the only effort we have had so far.
53'
Nearly 10 minutes into the second half and it might be time for Villas-Boas to look to his bench. He has a few of his players warming up, but he has still to decide his next move.
51'
The tempo is a little slower than it was in the first half, and that should only play into Porto's hands.
46'
We are back underway in Porto, no changes at the break for either side.
45' +1
HALF-TIME - PORTO 2-0 MARSEILLE.
43'
As it currently stands, Porto will move into second in Group C. Manchester City lead Olympiacos 1-0 with half-time approaching at the Etihad Stadium.
41'
Both sides win corners of their own but fail to trouble the scoreline. Five minutes left for Marseille to find a way back into this game before the break.
38'
The first 35 minutes have been full of drama. Two goals, two penalties, one disallowed goal and an overturned penalty. Hopefully, the game continues in the same fashion!
35'
F. Thauvin gets yellow.
Thauvin is now shown a card for a sloppy challenge and the referee did not have much choice with that one.
32'
Sérgio Oliveira gets yellow.
Sergio Oliveira becomes the first player to enter the referee's book as he is shown a yellow card for a strong challenge on Payet. The visitors now have a free-kick in a good position.
29'
Hopefully, for Marseille's point of view, Payet takes not of that penalty and learns from tonight's error.
28'
Penalty goal scored by Sérgio Oliveira for Porto!
GOAAALLLL - PORTO 2-0 MARSEILLE - The home side doubles their advantage thanks to a perfect penalty from Sergio Oliveira. It all came from Amavi's foul on Corona at the far post, and the officials were adamant there was a foul in the build-up. Mandanda did what he could to stop the penalty, but the ball flies past his right hand into the bottom corner.
27'
PORTO PENALTY!!
26'
It remains one-nil to the home side thanks to Mandanda's powerful punch at the back post from the free-kick.
25'
The home side win a free-kick on the edge of the box...
24'
Just over halfway through the first half and the game has become scrappy. Lots of 50/50 headers and misplaced passes but it is making for a more frantic contest.
22'
Corona is up and battling on, but he still does not look fully comfortable.
17'
Villas-Boas has stayed within his technical area for the full 20 minutes, and he is doing all he can to encourage Sakai to get forward and attack the Porto defence.
15'
To say they are in the lead, Porto do not look like a team that want to double their advantage. They seem happy to absorb the pressure, and they will be hoping their tactics do not come back to bite them.
13'
Marseille are still coming forward in numbers, and Payet is playing just behind Benedetto in attack. As usual, Thauvin is busy and looking for the ball at all times, but Porto look unfazed at the back.
11'
That miss could effect Payet's confidence for the rest of the night. Nobody should be missing the target from there, but he has been punished for trying to be too clever.
10'
Marseille won the spot-kick after Sarr brought down Thauvin in the box. The defender tried to plead his innocence, but the challenge was mistimed, and he looked guilty. However, Payet has aimed for the top corner and got it all wrong, and he has smashed the ball into the stands.
6'
Porto will be delighted with how this match has started; they now need to settle down and make sure they kick on from here.
4'
M. Marega has scored a goal for Porto! Assist by J. Corona.
GOALLLLLLLL PORTO 1-0 MARSEILLE - The home side open the scoring thanks to Marega's simple finish inside the box. He has Corona to thank for the goal, with the winger turning his marker before playing in a simple cross.
Marega turns to thank Corona straight away, and it comes as no surprise. The midfielder could have been selfish and gone for goal himself, but he saw the pass, and we have our first goal of the night.
3'
Marseille now win a free-kick of their own as Diaz leaves his leg in when challenging Gonzalez.
2'
Porto win the first free-kick of the night due to a late challenge in the middle of midfield.
1'
We are underway...
Hello and welcome to tonight's live coverage of the Champions League match between Porto and Marseille. The hosts are hoping to make it to two wins out of three in Group C, while Marseille are out to avoid three straight defeats.
Porto could not get the better of Manchester City, but their win over Olympiacos has given them a chance to kick on in the group stages. Marseille have conceded four goals so far in their first two defeats and tonight's battle is a big chance for them to get their campaign back on track.
Porto come into tonight's encounter after a surprise 3-2 defeat to Pacos de Ferreira, while Marseille lost 3-0 to Manchester City in their last game in the Champions League.
PORTO (4-3-3): Agustin Marchesin; Wilson Manafa, Chancel Mbemba, Malang Sarr, Zaidu Sanusi; Otavio, Mateus Uribe, Sergio Oliveira; Corona, Moussa Marega, Luis Diaz.
SUBS: Joao Mario, Fabio Vieira, Marko Grujic, Shoya Nakajima, Romario Baro, Mamadou Loum, Nanu, Diogo Costa, Diogo Leite, Evanilson, Toni Martínez, Mehdi Taremi.
MARSEILLE (4-4-2): Steve Mandanda; Hiroki Sakai, Alvaro Gonzalez, Duje Caleta-Car, Jordan Amavi; Morgan Sanson, Boubacar Kamara, Valentin Rongier, Dimitri Payet; Florian Thauvin, Dario Benedetto.
SUBS: Lucas Perrin, Marley Ake, Luis Henrique, Pape Alassane Gueye, Yohann Pele, Michael Cuisance, Saif-Eddine Khaoui, Simon Ngapandouetnbu, Kevin Strootman, Leonardo Balerdi, Valère Germain.
The two teams are out on the field and kick-off is moments away...
Porto will feel they have what it takes to hang on for all three points, but the first 15 minutes of the second half will be crucial. Villas-Boas may turn to his bench for inspiration, but his team have proven they can cause problems once they get into the final third.
That is all for tonight's folks, thanks for joining us. Goodbye!
The two teams will meet again in the Champions League later this month, and Marseille need to win if they want to be still playing European football after Christmas.
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