In the early morning of Sunday, Dortmund drew 3-3 with St. Pauli away, which was the first time Dortmund failed to win the first round of the Bundesliga in 10 years. According to Biography, during an interview with the media, Kober was suddenly hit by a paper ball flying from the fan zone. He had to block the throwing objects with his hands many times. This scene made people shook their heads and sigh.

For the source of these paper balls, German media analyzed that this was a remnant of colorful fragments left by the fireworks performance of St. Pauli fans before the start of the game. In response, Dortmund coach Kovac said: "This situation is indeed a bit troublesome."