The Socceroos suffered a 2-1 extra-time loss to South Korea after relinquishing a 1-0 lead in the Asian Cup quarterfinals. The loss was due to a penalty and free kick from Son Heung-min after defender Lewis Miller's errors, with Aiden O'Neill receiving a red card. The Socceroos will be leaving Qatar with a sense of devastation, while coach Graham Arnold acknowledged South Korea's top league players' fast tempo play.