For LIVE coverage of USA v Germany and Portugal v Ghana, click here.
Portugal will take on Ghana in a Group H clash of the 2014 Fifa World Cup at Arena da Baixada, Curitiba on Thursday.
Where to Watch Live
The kick-off is set for 9pm BST. Live coverage is on ITV 4. Radio commentary of the game will be available on BBC Radio 5 Live.
Portugal come into this crucial fixture after their last fixture ended in a 2-2 draw against the USA. Manchester United winger Nani opened the scoring for Paulo Bento's side early in the game - in the fifth minute.
The first half went in Portugal's favour. In the final 45 minutes, Jermaine Jones managed to level the score just after the hour mark before former Tottenham forward Clint Dempsey gave USA the lead in the 81st minute.
However, it was Silvestre Varela's goal in the fifth minute of the added time that has kept Portugal's hope of progressing to the next stage of the World Cup alive.
Meanwhile, Ghana also had an impressive game against Germany in their last fixture. The African nation came close to winning their first game of the summer tournament, but were forced to settle for a draw in the end.
The game between Germany and Ghana ended in a 2-2 draw. Bayern Munich star Mario Gotze gave Joachim Low's side a lead just after the start of the second half before Andre Ayew equalised for Ghana.
Asamoah Gyan gave James Kwesi Appiah's side a crucial lead in the 63rd minute. However, it was substitute Miroslav Klose's goal that helped Germany settle for a draw against Ghana in their last fixture.
Germany face USA in the other fixture scheduled for the day. A victory for either side will see them make it to the next stages of the tournament. A draw will see both Germany and the USA make it to the Round of 16.
If USA loses their fixture against Germany, the winner of the tie between Ghana and Portugal will have the same points as the North American nation. The team with a better goal difference will seal a place in the last 16 of the World Cup.
What Managers Say
Paulo Bento (Portugal): "Let's stop talking about the absentees and think about playing," Bento said. "The situation is very simple: either we win or we start to pack our bags. If it's a draw, it's the same. That's not a scenario the Portuguese are used to."
James Kwesi Appiah (Ghana): "It's about teamwork, I don't believe in the individual. It's important that we don't allow Ronaldo to play his game. We will study their game, but it's not only him, it's the whole team. It won't be easy to reach the round of 16 because we've only got one point. It'll be tough, it is possible."
Portugal 3-1 Ghana
Betting Odds (Bwin)
Portugal to win: 2.15
Ghana to win: 3.00
Last Five (all competitions, most recent first): D L W W W
Last Result: Japan 0-0 Portugal
Last Five (all competitions, most recent first): L W W L D
Last Result: Colombia 2-1 Ghana
Probable Lineup: Beto; Alves, Pereira, Pepe, Costa; Veloso, Meireles, Moutinho; Nani, Ronaldo, Postiga
Suspended: Sulley Muntari
Probable Lineup: Dauda; Afful, Mensah, Boye, Asamoah; Rabiu, Badu, Boateng; Atsu, A Ayew, Gyan