Die Mannschaft went 1-0 up against the Black Stars through Mario Gotze, but had to scramble for a draw as Andre Ayew and Asamoah Gyan turned the scoreline on its head before Miroslav Klose equalised late on.
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"We didn't want to play for safety, we just wanted to avoid running back and forth all the time in these temperatures. We managed to get in front but out of nothing we conceded two goals.
"At this tournament you can't expect to play attcking football all the time. It is not good, to be too open and be punished for it. Attacking and defending are equally important."
The coach added he is aiming for all three points against the USA in the final group game before praising Bastian Schweinsteiger and Klose for their contributions.
"Our situation has not significantly changed. The situation is we want to win the next game and we want to win our group.
"Schweinsteiger and Klose revived the game. Sami Khedira and Mario Gotze were exhausted and had no strength anymore.
"Miro [Klose] was brillant at the goal and he was superb in training during the last days. Schweini [Schweinsteiger] had a couple of good moves going forward."