Hamburg have suspended defender Slobodan Rajkovic until further notice after a fight on the training ground with Son Heung-Min yesterday.
The pair are said to have come to blows after exchanging verbal insults with Tolgay Arsian, who needed treatment for a cut after being caught up in the brawl.
Hamburg coach Thorsten Fink has blamed Rajkovic for the incident and has suspended him for his actions, meaning that he will not travel with the club on their tour of South Korea.