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DORTMUND, GERMANY - SEPTEMBER 20: Pierre-Emerick Aubameyang of Dortmund celebrates his team's third goal during the Bundesliga match between Borussia Dortmund and Bayer Leverkusen at Signal Iduna Park on September 20, 2015 in Dortmund, Germany. (Photo by Alex Grimm/Bongarts/Getty Images)

DORTMUND, GERMANY - SEPTEMBER 20:  Pierre-Emerick Aubameyang of Dortmund celebrates his team's third goal during the Bundesliga match between Borussia Dortmund and Bayer Leverkusen at Signal Iduna Park on September 20, 2015 in Dortmund, Germany.  (Photo by Alex Grimm/Bongarts/Getty Images)

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DORTMUND, GERMANY - NOVEMBER 05: Pierre-Emerick Aubameyang of Dortmund controls the ball during the UEFA Europa League group stage match between Borussia Dortmund and Qabala FK at Signal Iduna Park on November 5, 2015 in Dortmund, Germany. (Photo by Sascha Steinbach/Bongarts/Getty Images)

DORTMUND, GERMANY - NOVEMBER 05:  Pierre-Emerick Aubameyang of Dortmund controls the ball during the UEFA Europa League group stage match between Borussia Dortmund and Qabala FK at Signal Iduna Park on November 5, 2015 in Dortmund, Germany.  (Photo by Sascha Steinbach/Bongarts/Getty Images)

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DORTMUND, GERMANY - SEPTEMBER 20: Pierre-Emerick Aubameyang of Dortmund celebrates his team's third goal during the Bundesliga match between Borussia Dortmund and Bayer Leverkusen at Signal Iduna Park on September 20, 2015 in Dortmund, Germany. (Photo by Alex Grimm/Bongarts/Getty Images)

DORTMUND, GERMANY - SEPTEMBER 20: Pierre-Emerick Aubameyang of Dortmund celebrates his team's third goal during the Bundesliga match between Borussia Dortmund and Bayer Leverkusen at Signal Iduna Park on September 20, 2015 in Dortmund, Germany.  (Photo by Alex Grimm/Bongarts/Getty Images)

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DORTMUND, GERMANY - NOVEMBER 08: Pierre-Emerick Aubameyang of Dortmund celebrates after winning the Bundesliga match between Borussia Dortmund and FC Schalke 04 at Signal Iduna Park on November 8, 2015 in Dortmund, Germany. (Photo by Lars Baron/Bongarts/Getty Images)

DORTMUND, GERMANY - NOVEMBER 08: Pierre-Emerick Aubameyang of Dortmund celebrates after winning the Bundesliga match between Borussia Dortmund and FC Schalke 04 at Signal Iduna Park on November 8, 2015 in Dortmund, Germany.  (Photo by Lars Baron/Bongarts/Getty Images)

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Gabonese striker Pierre-Emerick Aubameyang poses with the African Footballer of the Year Award during 2015 Glo-CAF Awards in Abuja, on January 7, 2016. AFP PHOTO/PIUS UTOMI EKPEI / AFP / PIUS UTOMI EKPEI (Photo credit should read PIUS UTOMI EKPEI/AFP/Getty Images)

Gabonese striker Pierre-Emerick Aubameyang poses with the African Footballer of the Year Award during 2015 Glo-CAF Awards in Abuja, on January 7, 2016. AFP PHOTO/PIUS UTOMI EKPEI / AFP / PIUS UTOMI EKPEI        (Photo credit should read PIUS UTOMI EKPEI/AFP/Getty Images)