Robin Knoche of Wolfsburg vies with Guido Burgstaller (Front) of Schalke during the DFB Cup match between FC Schalke 04 and VfL Wolfsburg at Veltins-Arena in Gelsenkirchen, Germany, on Feb. 7, 2018. Schalke 04 won 1-0. (Xinhua/Joachim Bywaletz)