Leverkusen coach Roger Schmidt refused to be sent to the stands after he was sent off for protesting Pierre-Emerick Aubameyang's second-half winner over Leverkusen.
Borussia Dortmund maintained its title aspirations with a narrow 1-0 win over Champions League hopeful Bayer Leverkusen in a controversial encounter at BayArena on Sunday.
Gabon striker Pierre-Emerick Aubameyang missed a huge opportunity to open the scoring on the stroke of halftime for the visiting side, as he scuffed his shot wide of goal after he was left unmarked inside the area.
But he made amends for that error to put Dortmund ahead mid-way through the second half through a fine counterattack.