Franco di Santo (C) of FC Schalke 04 vies with Vincent Sierro (R) of SC Freiburg during the German Bundesliga football match between FC Schalke 04 and SC Freiburg at the Veltins-Arena on March 31, 2018 in Gelsenkirchen, Germany. FC Schalke 04 won 2-0. (Xinhua/Joachim Bywaletz)