Richard Deitsch: Daily Olympic Briefing: Aug. 5

LONDON -- "It looms as one of the most complex and intriguing races in recent Olympic sprint history. Yet in another way, the Olympic men's 100-meter final can be distilled down to the simplest of uncertainties: Which Usain Bolt will fold himself into the blocks? Will it be the video game character who hijacked the Beijing Olympics and then 12 months later took the world record down to an absurd ...