Manchester United's Cristiano Ronaldo praised the resilience of the Portugal side after he scored twice in the 4-0 Euro 2008 qualifying win over Belgium.
Ronaldo celebrates his first goal against Belgium
The 22-year-old winger, who has scored 22 goals this season, said: "We created lots of opportunities in the first half but in the second we showed more guts.
"We began the second half with greater drive. We have a very strong side."
Ronaldo is tipped to be in the running for the end-of-season domestic awards because of his rich vein of form.
His Portugal team-mate Nuno Gomes broke the deadlock against Belgium in the 52nd minute, with Ronaldo scoring from a header two minutes later.
Ricardo Quaresma added a third on 68 minutes before Ronaldo completed his double.
Portugal are three points behind Group A leaders Poland, who have played a game more than the Portuguese.
Poland, who trounced Azerbaijan 5-0, are on 13 points, while Roy Hodgson's Finland are second on 11 points.