Key dates: Aug. 7 Venue: Hyde Park. Big story: Brothers in arms? Could medal favorites and brothers Alistair and Jonny Brownlee (above) cross the finish line at the Olympics together, holding hands? The duo, who grew up in Leeds, did just that at a recent event near Oxford when Alistair slowed down for his brother in the final stretch run. "I'd love to be able to do that if we could," said Alistair, in a BBC interview in June. "But the likelihood of the two of us having that much time to enjoy coming down the finish at the Olympics is pretty much zero." Top U.S. prospects: Manny Huerta, Hunter Kemper Others to watch: Javier Gomez (Spain), Simon Whitfield (Canada) Little-known fact: The sport has been part of the Olympics since 2000. Only two men will have competed all four times: Kemper and Whitfield, who won gold in 2000 and silver in 2008.
ERNST WUKITS/Getty Photo