DORTMUND, GERMANY - MAI 20: Pierre-Emerick Aubameyang of Borussia Dortmund celebrates getting the trophy for being the top scorer of this season after the final whistle during the Bundesliga match between Borussia Dortmund and Werder Bremen at Signal Iduna Park on Mai 20, 2017 in Dortmund, Germany. (Photo by Alexandre Simoes/Borussia Dortmund via Getty Images)
DORTMUND, GERMANY - MAY 20: Pierre-Emerick Aubameyang of Borussia Dortmund celebrates getting the trophy for being the top scorer of this season after the final whistle during the Bundesliga match between Borussia Dortmund and Werder Bremen at Signal Iduna Park on May 20, 2017 in Dortmund, Germany. (Photo by Alexandre Simoes/Borussia Dortmund via 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)
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)
Gabon's national football team striker Pierre-Emerick Aubameyang (2nd L) controls the ball at the stade de l'amitie in Libreville on February 5, 2012, during their Africa Cup of Nations quarter-final match between Gabon and Mali. AFP PHOTO / ISSOUF SANOGO (Photo credit should read ISSOUF SANOGO/AFP via Getty Images)
