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Dortmund's Gabonese forward Pierre-Emerick Aubameyang scores a goal during the UEFA Champions League football match Sporting CP vs BVB Borussia Dortmund at the Jose Alvalade stadium in Lisbon on October 18, 2016. / AFP / PATRICIA DE MELO MOREIRA (Photo credit should read PATRICIA DE MELO MOREIRA/AFP via Getty Images)

Dortmund's Gabonese forward Pierre-Emerick Aubameyang scores a goal during the UEFA Champions League football match Sporting CP vs BVB Borussia Dortmund at the Jose Alvalade stadium in Lisbon on October 18, 2016. / AFP / PATRICIA DE MELO MOREIRA        (Photo credit should read PATRICIA DE MELO MOREIRA/AFP via Getty Images)