"It's like in ancient Rome. There will be people around the pitch who want to see how two teams fight," the Schalke 04 star told German magazine Sport Bild. "The team who wants it more will win and we will fight to the death against Germany."
Boateng opted to play for Ghana, the country of his father, in 2009 and will be up against his half-brother and Germany right-back Jérôme Boateng in Fortaleza. Germany top their group after Monday's 4-0 hammering of Cristiano Ronaldo's Portugal, while Ghana are third after their 2-1 defeat to the USA the same day.
But the 27-year-old says he has no worries about his words being used as motivation against him. "Low can hang these sentences on the wall with pleasure," insisted Boateng. "This isn't a game-related opinion, more like something fundamental."