WARSAW, Poland (AP) – After his fine footwork failed to find the target, Cristiano Ronaldo knocked in the only goal Thursday with a thrusting header, sending Portugal into the European Championship semifinals with a 1-0 victory over the Czech Republic .
After Ronaldo twice hit the post, he finally darted in from behind his marker in the 79th minute with all the instincts of an all out striker and headed a cross from Joao Moutinho straight at the ground and up past the flailing hands of Czech Republic goalkeeper Petr Cech.
''We had a lot of chances,'' said Ronaldo, who scored his third goal in the last two matches. ''We had a great unity on the pitch and that is why we have reached our goal.''
Portugal, which will play either Spain or France in the semifinals in Donetsk, Ukraine, next Wednesday, is one game away from reaching its second European Championship final in eight years.
Ronaldo already provided some leadership and two goals to get past the Netherlands in the decisive last group game, and his encore was the lone goal on Thursday.
His strike finally punished the negative tactics of the Czechs, who had parked most of their players in front of Cech for much of the game.
''The Czechs didn't have a single chance,'' Ronaldo said.
For long it seemed to work, as even luck seemed to go against the Portuguese. In first-half injury time, Ronaldo deadened a cross from Raul Meireles on his chest, turned and with two touches set up a right-foot shot that had Cech beaten before it crashed against the near post. He threw up his eyes skyward in despair, and for long the desperation would continue.
In the 49th, Ronaldo clipped the post with a 25-meter free kick as pressure immediately increased in a match where the Czechs seemed to be looking for little else than a rare counterattack ahead of a penalty shootout.
By then, Ronaldo had hit the post four times in two games. And when he finally scored and was mobbed by his teammates, he went over to the camera with a beaming smile for a victory kiss to the rest of the world.
''We have suffered,'' Portugal forward Nani said. ''But we always wanted to win and that's what we showed. We were superior, then we scored and we really deserved this result.''
At the final whistle, Ronaldo dropped to his knees with clenched fists, then rose as Miguel Veloso jumped into his arms in celebration.
The Czechs started without captain Tomas Rosicky, whose Achilles tendon injury hadn't yet recovered enough for him to start in the country's most important game since it lost in the Euro 2004 semifinals.
Instead, coach Michal Bilek took the daring decision to throw in 21-year-old Vladimir Darida into the high-tension match for his first international start after he was a substitute in two warm-up games.
Ronaldo wandered from left to right and back again looking for space, and exemplified Portuguese frustration with the conservative tactics of the Czechs.
To add to Portuguese worries, striker Helder Postiga had to be stretchered off with an apparent right hamstring injury in the 40th minute and was replaced by Hugo Almeida.
In the first minute of the second half, Meireles served Almeida an ideal cross in the center, yet he inexplicably missed target from 10 meters (yards) out, highlighting Portugal's troubles with finding an all-out striker. In the 58th, Almeida's header was disallowed for offside.
Czech Republic: Petr Cech, Michal Kadlec, David Limbersky, Theodor Gebre Selassie, Tomas Sivok, Vladimir Darida (Jan Rezek, 61), Tomas Hubschman (Tomas Pekhart, 86), Petr Jiracek, Vaclav Pilar, Jaroslav Plasil, Milan Baros.
Portugal: Rui Patricio, Bruno Alves, Fabio Coentrao, Joao Pereira, Pepe, Joao Moutinho, Raul Meireles (Rolando, 88), Nani (Custodio, 84), Miguel Veloso, Helder Postiga (Hugo Almeida, 40), Cristiano Ronaldo.