DORTMUND, GERMANY - APRIL 27: Christoph Metzelder looks on during the Bundesliga match between Borussia Dortmund and FC Schalke 04 at Signal Iduna Park on April 27, 2019 in Dortmund, Germany. (Photo by TF-Images/Getty Images)
DORTMUND, GERMANY - APRIL 27: Christoph Metzelder looks on during the Bundesliga match between Borussia Dortmund and FC Schalke 04 at Signal Iduna Park on April 27, 2019 in Dortmund, Germany. (Photo by TF-Images/Getty Images)