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MUNICH, GERMANY - APRIL 21: Robert Lewandowski of Bayern Muenchen celebrates scoring the fifth goal during the UEFA Champions League Quarter Final Second Leg match between FC Bayern Muenchen and FC Porto at Allianz Arena on April 21, 2015 in Munich, Germany. (Photo by Dennis Grombkowski/Bongarts/Getty Images)

MUNICH, GERMANY - APRIL 21:  Robert Lewandowski of Bayern Muenchen celebrates scoring the fifth goal during the UEFA Champions League Quarter Final Second Leg match between FC Bayern Muenchen  and FC Porto at Allianz Arena on April 21, 2015 in Munich, Germany.  (Photo by Dennis Grombkowski/Bongarts/Getty Images)