Guido Burgstaller (2nd L) of Schalke 04 shoots during the Bundesliga soccer match between FC Schalke 04 and FSV Mainz 05 in Gelsenkirchen, Germany, Sept. 20, 2019. (Photo by Joachim Bywaletz/Xinhua)

Guido Burgstaller (L) of Schalke 04 vies with Jeremiah St.Juste of Mainz during the Bundesliga soccer match between FC Schalke 04 and FSV Mainz 05 in Gelsenkirchen, Germany, Sept. 20, 2019. (Photo by Joachim Bywaletz/Xinhua)

Players of Mainz celebrate after scoring during the Bundesliga soccer match between FC Schalke 04 and FSV Mainz 05 in Gelsenkirchen, Germany, Sept. 20, 2019. (Photo by Joachim Bywaletz/Xinhua)

Weston McKennie (L) of Schalke 04 vies with Kunde Malong of Mainz during the Bundesliga soccer match between FC Schalke 04 and FSV Mainz 05 in Gelsenkirchen, Germany, Sept. 20, 2019. (Photo by Joachim Bywaletz/Xinhua)