As the Olympic countdown continues, we find out what winning Olympic gold means for athletes who have more to prove than sporting ability. Paralympic dressage rider Lee Pearson is one of the most successful Paralympians ever, but is struggling to keep going in his sport due to lack of sponsorship.

BMX is a first-time Olympic sport in Beijing and for BMX prodigy Shanaze Reade it's the chance to show the world that BMX is more than kids doing tricks.

Rowers Annie Vernon and Elise Laverick are hoping that women's rowing can finally break out of the shadow of the men and win gold for Britain for the first time in history.