Bayern Munich managed to beat Werder Bremen 2-1 in the DFB Pokal tie.
“Today, we have beaten ourselves,” Schaaf told the official Bremen website.
“We had five clear chances in the second half. If you do not use them and give your team the advantage, it will be difficult.
“We have been punished today, we bitterly wasted our opportunities, and we need to be angry with ourselves.”
