Last Updated: 26/06/14 7:08pm
Thank you very much for joining me today for the live commentary. Hope you enjoyed our coverage. Have a good evening. It's goodbye from me for now.
Both Portugal and Ghana are out of the World Cup! While the African side finish bottom of Group G, the Seleccao end up third, level on points with the USA but with an inferior goal difference. This means that Germany and the USA are through to the last 16.
Gyan takes the free kick, and it goes just over the crossbar. Seconds later, Moutinho's effort on goal goes wide.
Gyan is hacked to the floor by Moutinho, and things are getting messy. The Portugal midfielder gets a yellow card, but the Ghana striker is very angry with the challenge.
CHANCE! Once again Ronaldo is denied by the Ghana goalkeeper! The Portugal star could have had a hat-trick today.
CHANCE! Brilliant cross from the right from Nani that Ronaldo tries to turn in, but his effort goes just wide.
Beto is in tears now after being substituted in the final minutes of the contest. Meanwhile, four minutes of injury time have been awarded.
Another World Cup history for you... Ronaldo has become the first ever Portuguese player to score in three successive World Cups.
SAVE! Ronaldo goes close again with a fierce shot from close range, but this time Dauda makes the save from point-blank range.
Portugal 2-1 Ghana Cristiano Ronaldo makes it 2-1 to the Seleccao with 10 minutes of normal time remaining! A wonderful cross is floated in from the left which the Ghana defence fails to clear away, as Dauda gives the ball to Ronaldo just yards out. The Real Madrid forward makes no mistake in slamming the ball home.
Ronaldo is down on the pitch and seems to be in pain. He is hobbling at the moment, as Portugal prepare to take a corner.
Good play from Ronaldo, as he rallies down the left flank and then floats in a cross, which is over-hit and goes out of play.
Varela goes for glory with an attempt from outside the box, but it goes way over the Ghana crossbar.
SHOT! Andre Ayew takes a shot from outside the Portugal penalty box, but his effort is not on target and does not trouble Beto.
It is still end-to-end action at the moment, but there is a distinct lack of a killer-pass from either team. There is not much creativity on show, but the intent and determination is there.
Waris goes down inside the Portugal box following a challenge from Pepe, but it is actually brilliant defending from the Real Madrid centre-back, who has not done anything rash... yet.
Portugal are shell-shocked at the moment, and are lacking creativity and invention. They need to pick themselves up quick if they still hope to progress to the last 16.
A bit of World Cup history for you... That goal from Gyan has made him the highest scoring African player in the history of the World Cup.
CHANCE! Majeed Waris misses a glorious chance to make it 2-1 to Ghana, as he heads a wonderful cross wide. That should have resulted in a goal!
It was probably the assist of the 2014 World Cup finals from Kwadwo Asamoah. The technique was absolutely top class!
Portugal 1-1 Ghana: Ghana are back in the game! Asamoah Gyan heads home from close range after connecting with a truly sensational cross from Kwadwo Asamoah! What a great cross that is with the outside of his left foot!
Moutinho is down in the centre circle following a challenge from Majeed Waris, who gets into the referee's books.
Another attacking move from Portugal goes to waste, as a floated cross from the left flank is easily claimed by Dauda.
CHANCE! Gyan goes for goal with a right-footed shot on the edge of the Portugal box and narrow misses Beto's near post. Ghana are not out of the match yet!
Portugal earn a corner early on in the second half after some brilliant passing movement involving Ronaldo and Nani. The Manchester United winger's final effort on goal is powerful, but it takes a deflection off of Boye and goes for a corner, which the Seleccao fail to make the most of.
The second half is about to get underway, as the two sets of players are now coming out onto the pitch.
You can get in touch with me by emailing me at Subhankar.Mondal@bskyb.com or send me a tweet @subhankarjourno.
So what have you made of the first 45 minutes? Have you been impressed with Portugal's performance? What are your predictions for the second half? Let me know your thoughts and I will post them on this page.
However, as things stand, both Portugal and Ghana are heading home. That's because in the other Group G match in Recife, it is goalless between the USA and Germany at the break.
That was a very entertaining and good 45 minutes of football. Portugal were the better side, but Ghana did not allow them to have their own way. However, it is the Euro 2004 finalists who are in the lead at the moment, thanks to an own goal from John Boye on the half-hour mark.
CHANCE! Nani puts the ball inside the Ghana box, and this time Boye almost scores an own goal while trying to clear away the danger. How lucky he is on this occasion!
Nani goes for goal from a long distance with his right foot... The ball is nowhere near goal - a wasted shot from a player who is really struggle to recover his form.
Ghana are giving the ball away cheaply and are lacking creativity on the ball. So far they have put in crosses without looking to penetrate through the middle.
Ghana launch a counter-attack down the left flank and a cross is rolled in for Gyan. The striker collects it but then goes down with Bruno Alves next to him. The referee waves play-on, and rightly so.
CHANCE! Atsu tries a brilliant effort from inside the box on the left side aiming for the far corner, but he does not get enough curve on the ball.
It is end-to-end action in Brasilia, as Ghana continue to press on for an equaliser and Portugal allow them the space to attack.
CHANCE! Gyan gets a great chance to restore parity for Ghana as he connects with a Christian Atsu delivery, but his header does not go in.
Portugal are really imposing themselves on the match now. They know that a 1-0 win is simply not enough for them - they need to score more goals.
CHANCE! Ruben Amorim goes close with a right-footed shot aimed at the near post, but just misses the target.
CHANCE! Portugal almost make it 2-0 as Ronaldo tries to place a well-taken shot into Ghana goal, but goalkeeper Fatawu Dauda makes a good save.
Portugal 1-0 Ghana: Portugal have taken the lead and how! Ghana were on the attack, but then the Seleccao raced onto the other end of the pitch. Miguel Veloso found himself with the ball on the left flank and his cross was inadvertently put into his own net byJohn Boye. Boye was trying to clear it away, but he could only turn it into his own goal
Brilliant attack from Portugal but once again it fails to yield anything concrete. Ronaldo is released down the middle and he then releases Miguel Veloso down the left who then cross, but it does not pose a problem for Dauda.
Free-kick to Portugal again in a dangerous position. It is Ronaldo this time who is brought down. However, the set-piece delivery does not yield anything.
Portugal are now playing some patient and passing football at the moment, but all in midfield and without really looking threatening.
SAVE! Free-kick to Ghana from a good distance... It is taken by Asamoah Gyan and finds Gyan, whose header on target is turned away by Beto.
In the other Group G match at the Arena Pernambuco in Recife, it is still goalless between the USA and Germany. As things stand, the USA and Germany will be going through to the last 16.
End-to-end action in Brasilia, as Beto keeps out a Gyan attempt on goal. We have a real game on our hands!
SAVE! Sensational save from Fatawu Dauda as he keeps out a Cristiano Ronaldo header from just yards out. A brilliant cross is floated in from the right flank and Ronaldo gets a free header, but Dauda makes a superb save. And he celebrates it as if he has scored a goal! Brilliant!
Eder gallops down the left flank for Portugal and then rolls in a cross, but it is easily cleared away by the defender.
Asamoah Gyan has looked threatening and lively for Ghana at the moment and is creating problems for the Portugal defence.
Yet again, Ghana use the left side of Portugal's defence to launch an attack and get the ball inside the penalty box. The Seleccao are not looking that comfortable in midfield or in defence - they are struggling to get the ball out of their own half at the moment.
Another Ghana attack down the right, another cross, another save from Beto. It seems that the African side are set on using the right flank to attack.
It has been a competitive match so far, with both Portugal and Ghana looking very determined to score.
SAVE! Cristiano Ronaldo gets his free-kick on target, but Fatawu Dauda makes the save. First corner of the contest goes to Portugal - not that they are able to make much of it.
Moutinho is brought down by Badu outside the Ghana box. Cristiano Ronaldo is getting ready to take the free-kick...
Ghana on the attack now as Christian Atsu crosses in from the right, but Beto makes the clearance. The ball is still kept in play, but eventually Portugal clear away the danger.
Bruno Alves tries to send a long ball through from defence, but the Ghana defenders are alert to it.
Portugal are controlling possession at the moment, but inside their own half or in midfield. The European side are not threatening much at the moment.
OFF THE CROSSBAR! Brilliant play from Ronaldo as he gallops down the right flank and then floats the ball on goal. How unlucky for him that it hits the Ghana crossbar!!
Portugal try to launch an attack down the right with Cristiano Ronaldo and Nani getting involved, but they fail to get the better of the Ghana defence. The ball is kept in play and a cross is floated over from the right wing, but there is no Portugal player to take advantage of it.
It's been a rather slow start to the match, as both sides seem to be sizing up each other. The ball is largely in Portugal's half of the pitch.
The pre-match formalities are now over. Kickoff is just minutes away at the Estadio Nacional in Brasilia.
The two teams' national anthems are being played now. What a great 90 minutes await us - this could go down as one of the best games of the 2014 World Cup: both teams need to win!
The two teams are now getting out onto the pitch for what promises to be a very exciting 90 minutes.
As for Ghana, the Black Stars lost their opening match 2-1 to the USA but recovered to hold much-fancied Germany to a 2-2 draw. Just like Portugal, they need to win today and hope that the result in the other match go their way.
In their next match, the Seleccao salvaged a 2-2 draw against the USA at the Arena da Amazonia in Manaus, thanks to a last-minute goal. And now, they need to win against Ghana by a big-goal margin and hope that things go their way in the other Group G fixture.
Paulo Bento's side kicked off their campaign with a 4-0 defeat to Germany at the Arena Fonte Nova in Salvador.
Portugal were expected to go far at the 2014 World Cup finals, but they could well be heading home after today's match.
You can send me your pre-match predictions and opinions by emailing me at Subhankar.Mondal@bskyb.com or tweet me @subhankarjourno.
Chris Green from Huddersfield has got in touch with me to say: 'Portugal to win 3-1, with Ronaldo getting a hat-trick.'
For Portugal, the key to winning is Cristiano Ronaldo playing well. The Madrid forward and 2013 FIFA Ballon d'Or winner has struggled to hit his best form in Brazil so far, but today his country needs him. The 29-year-old kept Portugal in the tournament with a brilliant 95th-minute cross for Silvestre Varela against the USA, and today the former Manchester United winger has to step up his game.
Asamoah Gyan will be a key man for Ghana today. He scored against Germany in the Black Stars' last Group G match and looked very lively. Today, the Sunderland striker has to do the same.
Ghana are missing two of the key players today: Sulley Muntari and Kevin-Prince Boateng. The duo has been sent home by the country's football federation due to disciplinary issues. The former was suspended for today's match anyway, but Boateng will be a miss for the African side.
Portugal have defender Pepe back from suspension. The Madrid centre-back was dismissed in their opening match against Germany. Highly-rated midfielder William Carvalho also starts for the Seleccao.
The big news for Portugal is that star man Cristiano Ronaldo is fully fit and starts for his country in a very crucial match. The Real Madrid forward has been struggling with a knee problem, but he has recovered to take to the pitch today.
Ghana Starting XI: Dauda; Gyan, Atsu, Agyemang Badu, A. Ayew, Rabiu, Waris, Mensah, Asamoah, Boye, Afful
Portugal Starting XI: Beto; Amorim, Bruno Alves, Pepe, Pereira; Veloso, Carvalho, Moutinho; Eder, Nani, Ronaldo
Neither Portugal nor Ghana have their destiny in their own hands, but both sets of players will be determined to give it one final push in order to carry on their World Cup adventure. Therefore, the match at Estadio Nacional in Brasilia promises to be a very feisty one.
All four teams are still mathematically in with a chance of progressing to the round of 16 from this group, but the USA and Germany are the favourites. That's because a draw between them in their game at the Arena Pernambuco in Recife today will send both of them through.
As things stand, Germany and the USA are first and second respectively in Group G with four points each. Ghana and Portugal are third and fourth respectively with a point each.
I am Subhankar Mondal and I will be taking you through the match. You can send me you pre-match predictions by emailing me at Subhankar.Mondal@bskyb.com or tweet me @subhankarjourno.