Antonio Rüdiger needs to show "class" and respect for others, German national team sporting director Rudi Völler has said, after the defender appeared to throw ice toward the referee during Real Madrid's Copa del Rey loss to Barcelona.

German Football Federation (DFB) sporting director Rudi Völler said that the outburst of Germany and Real Madrid defender Antonio Rüdiger in the Copa del Rey final was "not acceptable." "Especially as a Germany international.

Real Madrid and Germany defender Antonio Rüdiger had a knee operation on Tuesday and faces a race to be fit for the Nations League Final Four and the Club World Cup. The centre back was also hit with a six-game ban by the Spanish FA after throwing an object at the referee in Saturday's Spanish Cup final defeat to Barcelona.