Borussia Dortmund coach Jurgen Klopp hit out at his side's display in the 3-3 draw against Eintracht Frankfurt on Wednesday morning (AEST).
The result saw the defending Bundesliga champion fall seven points adrift of leader Bayern Munich, and remain five behind unbeaten Frankfurt.
Klopp was full of praise for the league's newcomer and believed it deserved at least a point.
"Eintracht did well, we did badly," he said. "Therefore, Eintracht deserved this point because they played some sensational counter-attacks.
"Every pass was inch perfect, every cross found its man and every run they did was spot on – that is extraordinary quality which they had."
For Dortmund, whose 31-game unbeaten streak was ended by Hamburg at the weekend, the focus must now turn to getting back to winning ways against Borussia Monchengladbach this weekend and put this latest disappointment behind it with a matter of urgency.
Dortmund looked on course to bounce back from its defeat when goals from
Two goals in as many minutes from
Anderson then equalised again in the 73rd minute to earn Frankfurt a point and keep it in second place behind Bayern Munich at the top of the table with 13 points from its first five games back in the top flight.
"I did not enjoy the game one bit," added Klopp on Liga Total television. "We conceded two brutal goals on the counter attack and the fact is we are going through phases when we are conceding lots of goals."
"We are enjoying the start that we have had and that we are playing such good football," he said.
Hamburger SV has parted ways with sports director Frank Arnesen by "mutual agreement" with immediate effect.