DAEGU, SOUTH KOREA - AUGUST 25: Usain Bolt of Jamaica smiles during the PUMA - JAAA press conference prior to the IAAF World Athletics Championships at the Daeduk Cultural Hall on August 25, 2011 in ... more 
DAEGU, SOUTH KOREA - AUGUST 25: Usain Bolt of Jamaica smiles during the PUMA - JAAA press conference prior to the IAAF World Athletics Championships at the Daeduk Cultural Hall on August 25, 2011 in Daegu, South Korea. (Photo by Alexander Hassenstein/Getty Images for Puma) less 
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Getty Images | Photo By Alexander Hassenstein / Getty Images for Puma
Thu, Aug 25, 2011 6:06 AM EDT