Dong Dong
Dong Dong (simplified Chinese: 董栋; traditional Chinese: 董棟; pinyin: Dǒng Dòng; born April 13, 1989 in Zhengzhou, Henan) is a Chinese male trampoline gymnast who won the bronze medal in the 2008 Summer Olympics at Beijing, and the gold medal four years later in the 2012 Summer Olympics at London.