Friday's match had very little Ronaldo and Ibrahimovic, but it was the Portuguese captain that came out on top at the end of the 90 minutes. A diving header in the final seven minutes of the match gives the Lusitanos a slender lead, heading into Tuesday's second match.
In Sweden, the Portuguese will face a tough test, as Sweden will likely pile on the pressure, looking for a necessary goal. Knowing that they need to score, could give Paul Bento's side a good opportunity to hit the hosts on the counter-attack.
Just like in their first match at the Estádio da Luz, the visitors will really need to be careful with giving Sweden any set-pieces in or around their 18-yard-box.
A few times on Friday, clumsy challenges gave Sweden a chance to put the ball into the box, as they looked for Ibra, but he was unable to make something happen. On Tuesday, most, if not all the pressure will be on his shoulders.
At the age of 32, the PSG striker could be facing his last chance of making it to a World Cup, but he is confident that him and his teammates can overcome the deficit.
"We've got the measure of them now, and that's an advantage," said the Swedish striker. "It's the last game before the World Cup now. Get behind us and we'll make it."
Friday's victory was Portugal's first over Sweden in Portugal, which should give them some added confidence ahead of Tuesday's crucial match. Another advantage for Portugal will be the fact that they have progressed to the two last major tournaments, having won in a two match playoff.
If Portugal is able to overcome Sweden on Tuesday night in Stockholm, it would mark their fourth straight World Cup appearance. But lets also not forget, the last time Portugal defeated Sweden away from home, was in October 2009, when Rui Costa scored an 89th minute goal, giving the Portuguese a 2-3 victory.
Knowing that they do not need to win gives the Portuguese a clear advantage. Even a loss for Portugal could see them through to the World Cup, as long as they do not lose by more than one goal.
Watch Sweden vs Portugal live on Tuesday, November 19, 2013:
If you are outside these viewing areas, you will not want to miss this highly anticipated second match between Sweden and Portugal. Make sure you visit the Sweden vs Portugal match page for full TV listings in your area.