What to Watch During the 2012 London Olympics

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  • Gabby Douglas, 2012 London Olympics
  • 2012 London Olympics, Serena Williams, Venus Williams
  • LaShawn Merritt, 2012 London Olympics
  • Usain Bolt, 2012 London Olympic Games
  • Queen Underwood, 2012 London Olympics
  • 2012 London Olympics
  • 2012 London Olympics
  • Michael Phelps, 2012 London Olympics
  • 2012 London Olympics, Cullen Jones
  • Lia Neal, 2012 London Olympics
  • 2012 London Olympics, John Orozco

Men's Track and Field: 400m Dash

When: Saturday, August 4 at 5:35 a.m. ET (first round)
Athletes to Watch: LaShawn Merritt (USA), Kirani James (Grenada) and Oscar Pistorius (South Africa). Pistorius will be the first double amputee to compete in a non-Paralympic track and field event in Olympic history.

(Photo: Andy Lyons/Getty Images)