And I think you have a great chance of making it out of the group stages. But I think that if it pans out as expected you'll struggle with Portugal in the QFs.
Noone beat Portugal twice. Unless you're referring to City beating United twice. I don't recall Ronaldo being in direct opposition to Corluka much in those games.
It's hardly just Ronaldo anyway, they have Deco, Simao, Quaresma, Carlvalho, Pepe, Bosingwa, Moutinho, Veloso etc, their main problem is a lack of striker and a class keeper. They can be a threat to anyone, though.