"We boosted our defence. We knew they would attack," the Czech coach told reporters after a 1-0 defeat to a Ronaldo header in their quarter-final clash at Euro 2012.
"In the first half we managed, but in the second we were losing strength and it was easier for Portugal to move in and score.
"We knew we weren't on their level when it comes to football," Bilek said.
"If you open up against Portugal, they will punish you. It's very difficult to stop them," he said.
"Ronaldo is just better. He knows how to play with his head, both feet," said Bilek.
"We always miss him [Rosicky] when he's not playing," Bilek said. "He's an exceptional player. But the whole team showed character and we didn't give up," .
"I can say it was a great success to go into the quarter-finals after the disappointing match with Russia. We can hold our heads high," he added.
