German team manager Oliver Bierhoff warned his players to avoid a repeat in the final with Argentina of the ugly scenes that marred the end of the two sides last eight clash in the 2006 finals.
Bierhoff found himself in the thick of it when punches were thrown after Argentina lost a tense penalty shoot-out to Germany.
"The Argentinians are very warm people and great hosts, but on the pitch they have a bit of a personality change and get fired up," said Bierhoff.
"They have fire in their eyes, which we will have to be ready for and not provoke them.
"They play hard, aggressive physical football, which means we can’t steer away from our football philosophy and must focus on what we have to do."