The fan attacks on Schalke 04 continue to shake the German club after the Bundesliga side were relegated on Tuesday.
Schalke players were attacked by their own fans when returning from Bielefeld after being relegated from Bundesliga for the first time in 30 years.
Schalke 04 were relegated from the Bundesliga for the first time in 33 years on Tuesday after losing 1-0 to fellow strugglers Arminia Bielefeld.
Suat Serdar celebrated his 24th birthday by scoring his first Bundesliga goal of the season as Schalke ended a 12-game winless run to beat Ausburg.
Bundesliga basement club Schalke 04 drew 0-0 at home to Mainz 05 in their relegation derby on Friday in coach Dimitris Grammozis' debut.
Juventus have confirmed the signing of United States midfielder Weston McKennie on a permanent deal.
Schalke 04 hired the relatively unknown Dimitrios Grammozis as their fifth coach of a turbulent season on Tuesday.
Schalke's problems continued as they sacked their first-team staff to become the first Bundesliga club with five different coaches in a season.
Borussia Dortmund have criticised players, including Emre Can and Erling Haaland, who took part in celebrations with fans.
Borussia Dortmund crushed Schalke 04 4-0 in their Ruhr valley derby on Saturday, with two goals from Erling Haaland.
Milan vs. Inter, Liverpool vs. Everton, Schalke vs. Dortmund: What to expect from weekend's big derbies
There are three big rivalry matches this weekend, with plenty on the line for all six clubs involved. Bill Connelly breaks down what to watch.
RB Leipzig cruised past hosts Schalke 04 3-0 on Saturday to stay seven points behind Bundesliga leaders Bayern Munich in second place.
VfL Wolfsburg battled their way past Schalke 04 1-0 on Wednesday to reach the German Cup quarterfinals.
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