Dortmund's defender Mats Hummels reacts during the DFB German Cup final football match BVB Borussia Dortmund vs Bayern Munich at the Olympic Stadium in Berlin on May 17, 2014. Arjen Robben and Thomas Mueller scored extra-time goals as Bayern won the German Cup with a 2-0 victory over rivals Borussia Dortmund. AFP PHOTO / PATRIK STOLLARZ        (Photo credit should read PATRIK STOLLARZ/AFP/Getty Images)