"They are in the semis because they've earned the right to be there. These games can be very dangerous because the rival has nothing to lose and everything to gain. They are going to try and enjoy the experience, and normally when that happens, things actually turn out well," said the Liverpool striker.
"I'm sure that the USA will take on board what Iraq and South Africa did, and add it to their game as they look to make life difficult for us."
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