
David Wagner, head coach of Schalke 04, reacts during a German Bundesliga match between FC Schalke 04 and TSG 1899 Hoffenheim in Gelsenkirchen, Germany, March 7, 2020. (Photo by Ulrich Hufnagel/Xinhua)

David Wagner, head coach of Schalke 04, reacts during a German Bundesliga match between FC Schalke 04 and TSG 1899 Hoffenheim in Gelsenkirchen, Germany, March 7, 2020. (Photo by Ulrich Hufnagel/Xinhua)