JOHANNESBURG, SOUTH AFRICA - AUGUST 15: Former Tour de France cyclist Tyler Hamilton during day 1 of the Discovery Vitality Summit at Sandton Convention Centre on August 15, 2013 in Johannsburg, South... more 
JOHANNESBURG, SOUTH AFRICA - AUGUST 15: Former Tour de France cyclist Tyler Hamilton during day 1 of the Discovery Vitality Summit at Sandton Convention Centre on August 15, 2013 in Johannsburg, South Africa. (Photo by Lefty Shivambu/Gallo Images/Getty Images) less 
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Thu, Aug 15, 2013 9:54 AM EDT