“All the goals came in the second half as Dortmund took another step towards the Bundesliga title. Jupp Heynckes made multiple changes to his side in the first game back after the winter break. Eren Derdiyok, Tranquilo Barnetta and Arturo Vidal were all left out, whilst Sidney Sam and Gonzalo Castro both switched from the right flank to the left. Patrick Helmes played just off Stefan Kiessling.” Zonal Marking