Borussia Dortmund maintain their unbeaten start to the Champions League season with a 4-1 victory against Athletic Bilbao at Westfalenstadion.
Source: BBC Sport
Impressive Dortmund score four in victory against Bilbao

Borussia Dortmund maintain their unbeaten start to the Champions League season with a 4-1 victory against Athletic Bilbao at Westfalenstadion.
Source: BBC Sport