In Schalke's 04 loss to Bremen, Schalke's young defender Kabak spat at the opposing player during the game. According to a report by the German media "Kicker", the German Football Association has intervened in the investigation.
The report pointed out that Kabak is being investigated by the German Football Association because he spat at Bremen's left-back Ludwig Augustinsen.
After the game, Kabak apologized to the opponent through social media. He said that he did not intentionally, and that this action was not in line with the spirit of competitive sports.