FILE - In this April 1, 2017 file photo Schalke's head coach Markus Weinzierl looks back after the German Bundesliga soccer match between FC Schalke 04 and Borussia Dortmund in Gelsenkirchen, Germany. Weinzierl was sent off the field of play. (AP Photo/Martin Meissner, file)
FILE - In this April 19, 2017 file photo Schalke's head coach Markus Weinzierl listens to the media at a press conference prior the Europa League quarterfinal second leg soccer match between FC Schalke 04 and Ajax Amsterdam in Gelsenkirchen, Germany. (AP Photo/Martin Meissner, file)
Schalke's head coach Markus Weinzierl reacts during the German Bundesliga soccer match between FC Schalke 04 and RB Leipzig in Gelsenkirchen, Germany, Sunday, April 23, 2017. (AP Photo/Martin Meissner)
Leipzig's head coach Ralph Hasenhuettl looks disappointed during the German Bundesliga soccer match between FC Schalke 04 and RB Leipzig in Gelsenkirchen, Germany, Sunday, April 23, 2017. (AP Photo/Martin Meissner)
Leipzig's Timo Werner celebrates after scoring during the German Bundesliga soccer match between FC Schalke 04 and RB Leipzig in Gelsenkirchen, Germany, Sunday, April 23, 2017. (AP Photo/Martin Meissner)
Leipzig's Timo Werner, center, is celebrated after scoring during the German Bundesliga soccer match between FC Schalke 04 and RB Leipzig in Gelsenkirchen, Germany, Sunday, April 23, 2017. (AP Photo/Martin Meissner)
Leipzig's head coach Ralph Hasenhuettl talks to his team after the German Bundesliga soccer match between FC Schalke 04 and RB Leipzig in Gelsenkirchen, Germany, Sunday, April 23, 2017. (AP Photo/Martin Meissner)
Schalke's head coach Markus Weinzierl reacts during the German Bundesliga soccer match between FC Schalke 04 and VfL Wolfsburg in Gelsenkirchen, Germany, Saturday, April 8, 2017. (AP Photo/Martin Meissner)
Schalke's Matija Nastasic and Wolfsburg's Mario Gomez, in front challenge for the ball during the German Bundesliga soccer match between FC Schalke 04 and VfL Wolfsburg in Gelsenkirchen, Germany, Saturday, April 8, 2017. (AP Photo/Martin Meissner)
Schalke's Coke jumps on scorer Guido Burgstaller after their 4th goal during the German Bundesliga soccer match between FC Schalke 04 and VfL Wolfsburg in Gelsenkirchen, Germany, Saturday, April 8, 2017. (AP Photo/Martin Meissner)
Schalke's Guido Burgstaller celebrates after scoring his second goal during the German Bundesliga soccer match between FC Schalke 04 and VfL Wolfsburg in Gelsenkirchen, Germany, Saturday, April 8, 2017. (AP Photo/Martin Meissner)
Schalke's scorer Leon Goretzka puts his arm on Schalke's scorer Daniel Caligiuri after the third goal during the German Bundesliga soccer match between FC Schalke 04 and VfL Wolfsburg in Gelsenkirchen, Germany, Saturday, April 8, 2017. (AP Photo/Martin Meissner)
Schalke player celebrate the 1-1 with fans after the German Bundesliga soccer match between FC Schalke 04 and Borussia Dortmund in Gelsenkirchen, Germany, Saturday, April 1, 2017. (AP Photo/Martin Meissner)
Schalke's Leon Goretzka complains with referee Felix Zwayer during the German Bundesliga soccer match between FC Schalke 04 and Borussia Dortmund in Gelsenkirchen, Germany, Saturday, April 1, 2017. (AP Photo/Martin Meissner)
Dortmund's Pierre-Emerick Aubameyang, 2nd from left, is celebrated after scoring during the German Bundesliga soccer match between FC Schalke 04 and Borussia Dortmund in Gelsenkirchen, Germany, Saturday, April 1, 2017. (AP Photo/Martin Meissner)
Schalke's Thilo Kehrer, center, celebrates after scoring during the German Bundesliga soccer match between FC Schalke 04 and Borussia Dortmund in Gelsenkirchen, Germany, Saturday, April 1, 2017. (AP Photo/Martin Meissner)
Schalke's Thilo Kehrer, right, celebrates after scoring during the German Bundesliga soccer match between FC Schalke 04 and Borussia Dortmund in Gelsenkirchen, Germany, Saturday, April 1, 2017. (AP Photo/Martin Meissner)
Pierre-Emerick Aubameyang from Dortmund celebrates with a mask after scoring during the German Bundesliga soccer match between FC Schalke 04 and Borussia Dortmund in the in Veltins Arena, Gelsenkirchen, Germany, Saturday, April 1, 2017. (Bernd Thissen/dpa via AP)
Schalke goalkeeper Ralf Faehrmann reacts with Schalke's Thilo Kehrer during the German Bundesliga soccer match between FC Schalke 04 and FC Augsburg in Gelsenkirchen, Germany, Sunday, March 12, 2017. (AP Photo/Martin Meissner)
Schalke's Max Meyer kicks the ball during the German Bundesliga soccer match between FC Schalke 04 and FC Augsburg in Gelsenkirchen, Germany, Sunday, March 12, 2017. (AP Photo/Martin Meissner)