Usain Bolt of Jamaica reacts after breaking the world record with a time of 19.30 to win the gold medal in the men's 200m final during the track and field athletics event at the National Stadium during Day 12 of the Beijing 2008 Olympic Games on August 20, 2008 in Beijing, China. (Photo by Adam Pretty/Getty Images)
Usain Bolt of Jamaica reacts after breaking the world record with a time of 19.30 to win the gold medal in the men's 200m final during the track and field athletics event at the National Stadium during Day 12 of the Beijing 2008 Olympic Games on August 20, 2008 in Beijing, China. (Photo by Adam Pretty/Getty Images)