Defender Per Mertesacker is 'surprised' at how well Joachim Low's young Germany side are doing as they eye a place in the World Cup final.
The Germans set up a mouth-watering semi-final with favourites Spain following with a four-goal demolition of Argentina in Cape Town on Saturday.
The staggering performance came just six days after they had destroyed England and confirmed the true potential of Low's side.
Mertesacker has been taken aback by the performances of some of the youngsters, who have stepped into the shoes of Rene Adler, Christian Trasch and captain Michael Ballack.
"I am very surprised at how well we are doing," said Mertesacker. "We are a very young side, but that has been our big secret.
"These players, like Mesut Ozil and Thomas Muller, have come in and grown so quickly in the space of a month.
"Everybody is fighting for the team. We are all behaving like a team and we are all doing our jobs," added the Werder Bremen defender.
Meanwhile, Jerome Boateng is looking forward to facing Spain in the World Cup semi-final in Durban on Wednesday.
The 20-year-old defender from Hamburg has already proven why Manchester City boss Roberto Mancini was happy to spend £10million to sign him.
"I don't know what Manchester City are learning about me but I know I am learning that I am lucky to play for my national side," he said.
"I want to come to the Premier League because for me it is the best in the world and I want to learn something there.
"I am fortunate to have the chance to make the step but for now I am just concentrating on this adventure."