Usain Bolt is looking really confident, hoping to become the first 100-200 double gold medalist since Carl Lewis in 1984. Is there any way to stop him? The competition might have to revert to an old tactic: getting in his head.
Dreams come true for some at the Olympics. We see their joy often -- at the finish line and on the podium. But for others, like Lolo Jones and Sanya Richards, the dreams shatter in a matter of seconds.