When Justin Gatlin faces Usain Bolt in a rematch to become the fastest man in the world at this summer's Olympic games, he'll have the science and engineering of the United States' secret weapon in biomechanics optimizing each step he takes.
Olympic Stars to Watch: Oscar Pistorius, track and field (South Africa)
ROME Justin Gatlin Beats Usain Bolt In 100 Meter Race At Golden Gala Meet. After five dominating years, Usain Bolt is showing signs of slowing down. The Jamaican lost by a hundredth of a second to American Justin Gatlin.
World Championships 2015: Justin Gatlin 'said sorry for doping'