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GELSENKIRCHEN, GERMANY - APRIL 20: Davy Klaassen of Ajax Amsterdam celebrates after scoring his team`s goal during the UEFA Europa League quarter final second leg match between FC Schalke 04 and Ajax Amsterdam at Veltins-Arena on April 20, 2017 in Gelsenkirchen, Germany. (Photo by TF-Images/Getty Images)

GELSENKIRCHEN, GERMANY - APRIL 20: Davy Klaassen of Ajax Amsterdam celebrates after scoring his team`s goal during the UEFA Europa League quarter final second leg match between FC Schalke 04 and Ajax Amsterdam at Veltins-Arena on April 20, 2017 in Gelsenkirchen, Germany. (Photo by TF-Images/Getty Images)