Xavi doesn't think it's Ronaldo alone, nor do I:

Euro 2012: Xavi Hernández warns that Cristiano Ronaldo is not Portugal's sole threat ahead of semi-final - Telegraph

"I've watched all their games," Xavi said. "They are a team of a high level and have gained in confidence in the last two games they won.

"They are better than in the World Cup. They have improved, matured, and defend very well and then they are so dangerous on the wings with Nani and Cristiano Ronaldo -- players who can dribble and shoot brilliantly.

"They know how to hit you on the break very well and (Fabio) Coentrao is also in good form.

"They have players with a lot of talent and also in midfield with (Joao) Moutinho and (Raul) Meireles. They are top level, so it will be a very difficult game."

That said, Spain is still better organised.

_{*Lunatic*, n.
One whose delusions are out of fashion.}