Joachim Low was left ruing defensive errors in the wake of his team's 4-4 draw with Sweden on Tuesday, and admitted that he is still in disbelief over the outcome of the fixture.
Goals from Zlatan Ibrahimovic, Mikael Lustig, Johan Elmander and Rasmus Elm clawed back die Mannschaft's four-goal lead and made it a night to forget for Low and his side.
"To be honest, 10 minutes after the game, I cannot explain this," conceded the coach, speaking to reporters.
"The first 60 minutes were amazing, we played very, very well. Then we let ourselves lose rhythm, it's unexplainable. There was no organisation, we had problems with high balls and it is hard to say what happened there.
"The problem probably started in our heads. You lead 4-0 and you think everything goes your way. We made so many mistakes in the last 30 minutes. We have to analyse that. For me it is very difficult to say why we made this many errors.
"The team started both matches full of concentration. We were very strong against Ireland and we started strong against Sweden. Now we are extremely disappointed but this match won't take us off our track."
German captain Philipp Lahm was also left devastated after the game and lamented Germany's lack of concentration.
"When you're leading 4-0 and the match ends 4-4, something has gone wrong," he explained.
"Obviously we were already finished with the match [mentally]. You concede one goal, you could concede two goals, and suddenly everything starts to fall apart.
"This can't happen. We'll sit down together and analyse everything."