US sprinter Justin Gatlin points to a frostbite scar on his leg during an interview with the Associated Press in Daegu, South Korea, Wednesday, Aug. 24, 2011. The World Athletics Championships run ... more 
US sprinter Justin Gatlin points to a frostbite scar on his leg during an interview with the Associated Press in Daegu, South Korea, Wednesday, Aug. 24, 2011. The World Athletics Championships run Aug. 27 through Sept. 4, 2011 in Daegu. (AP Photo/David J. Phillip) less 
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Associated Press | Photo By David J. Phillip
Wed, Aug 24, 2011 3:12 AM EDT