In this file photo taken on April 9, 1961, Zhuang Zedong (R) competes in the men's team finals of the 26th World Table Tennis Championship in Beijing, capital of China. Zhuang Zedong, a former Chinese table tennis player known for his participation in Sino-U.S. Ping-Pong Diplomacy in the 1970s, died at the age of 73 in Beijing on Feb. 10, 2013. [Xinhua]