Guido Burgstaller (L) of Schalke 04 vies with Panagiotis Retsos (R) of Bayer Leverkusen during the German Bundesliga match between Bayer 04 Leverkusen and Fc Schalke 04 in Leverkusen, Germany, Feb. 25, 2018. Schalke 04 won 2-0. (Xinhua/Joachim Bywaletz)