Borussia became the first club since Dresdner SC in 1944 to defend their title won the previous year .
Borussia Dortmund were crowned champions for the second time after a group stage and a final .
Borussia Dortmund became the first club since Dresdner SC in 1944 to defend Borussia Dortmund 's title won the previous year .
Borussia Dortmund were crowned champions for the second time after a group stage and a final .