Olympic Dreams - 2008 - The Class of 2012

First of a new four-part series looking at what it takes to succeed in the world of elite sport as Britain's young hopefuls begin to dream of Olympic gold. 14-year-old diving prodigy Thomas Daley, 11-year-old Welsh gymnast Venus Romaeo and 18-year-old judo fighter Ashley McKenzie are all at crucial stages in their young careers and have all been tipped to win gold at the London 2012 Olympics. But how much have they and those around them had to sacrifice for their sporting success?