Borussia Dortmund head coach Lucien Favre conceded his side were too focused on the Bundesliga title following their demoralising 5-0 Der Klassiker rout to rivals Bayern Munich.
Bayern scored four first-half goals as they humiliated Dortmund 5-0 on Saturday to go a point clear in the race for the Bundesliga trophy.
Dortmund were two points clear prior to kick-off at Allianz Arena, however, Favre's team were put to the sword in the 100th league edition of Der Klassiker - Robert Lewandowski's brace inspiring Bayern.
Afterwards, Favre told reporters: "The 5-0 is difficult to understand but it is well-deserved.