James Rodriguez vs. Mario Götze, Robert Lewandowski vs. Pierre-Emerick Aubameyang and Arjen Robben vs. Christian Pulisic.

The first Klassiker of the season will be viewed by fans of Borussia Dortmund, Bayern Munich and the Bundesliga around the world, but what - and who - should they be watching closest?

We dissect the key battles within the Klassiker ahead of Saturday evening's showdown at the Signal Iduna Park.