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When the final whistle blew, paper cups were thrown at a group of nine Japanese fans who were behind one of the goals and had been holding up a Hinomaru national flag and cheering on the Japanese side.
A group of more than 100 Chinese fans rushed from the stands to an exit, waving a Chinese flag and taunting Japanese fans by chanting disparaging terms such as "Japanese midgets!"
http://www.yomiuri.co.jp/dy/national/20070805TDY02003.htm