Kai Havertz (L) of Leverkusen vies with Nassim Boujallab of Schalke 04 during the Bundesliga match between Bayer 04 Leverkusen and FC Schalke 04 in Leverkusen, Germany, May 11, 2019. The match ended in a 1-1 draw. (Xinhua/Ulrich Hufnagel)