Real Madrid defender Antonio Rüdiger has apologized for his outburst of rage against the referee at the end of his team’s Copa del Rey final defeat to Barcelona.

German national team sporting director Rudi Völler says Antonio Rüdiger needs to show “class” and respect for others after he appeared to throw ice toward the referee during Real Madrid’s Copa del Rey loss to Barcelona.

Officials from the German Football Association (DFB) have warned Antonio Rudiger that his behaviour in Real Madrid's Copa del Rey final defeat to Barcelona was "not acceptable". Amid the backdrop of a fresh attack on the match officials from Madrid before the game,