Jamaica's Usain Bolt displays the national flag of Jamaica after taking men's 100m final at the National Stadium, also known as the Bird's Nest, during Beijing 2008 Olympic Games in Beijing, China, Aug. 16, 2008. Usain Bolt claimed the title of the event and broke the world record. (Xinhua Photo)

Usain Bolt (C) of Jamaica competes during men's 100m final at the National Stadium, also known as the Bird's Nest, during Beijing 2008 Olympic Games in Beijing, China, Aug. 16, 2008. Usain Bolt claimed the title of the event and broke the world record. (Xinhua Photo)