In this file photo taken in April 1972, Zhuang Zedong (1st R, front) shakes hands with US table tennis player Glenn Cowan (2nd L, front) during a visit to the United States. 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]