Borussia Dortmund saw their Champions League bid extinguished in Bergamo on Wednesday but they need to pick themselves up quickly for a crucial Der Klassiker at the Westfalenstadion on Saturday.Bayern Munich hold an eight-point lead over Dortmund at the top of the Bundesliga so a win for the hosts would give them a glimmer of hope in the title battle, while a defeat would effectively end their chances and a draw isn’t much use either.