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STUTTGART, GERMANY - AUGUST 29: Cacau of Stuttgart (L) is challenged by Nikola Pokrivac of Rijeka during the UEFA Europa League Play-Offs second leg match between VfB Stuttgart and HNK Rijeka at Mercedes-Benz Arena on August 29, 2013 in Stuttgart, Germany. (Photo by Daniel Kopatsch/Bongarts/Getty Images,)

STUTTGART, GERMANY - AUGUST 29: Cacau of Stuttgart (L) is challenged by Nikola Pokrivac of Rijeka during the UEFA Europa League Play-Offs second leg match between VfB Stuttgart and HNK Rijeka at Mercedes-Benz Arena on August 29, 2013 in Stuttgart, Germany.  (Photo by Daniel Kopatsch/Bongarts/Getty Images,)