People shouldn't underestimate Ghana. Just ask the Czechs and Yanks!
From what i saw of the Ghana/US game the Ghanaians were just a hell of a lot more confident, they looked far better on the ball and they put in more effort, in the 93rd minute they were still chasing down every ball and pressing ahead to try and score another. The US looked disjointed all the way through.
# 5 in the world my arse