Some of the most ambitious, dedicated athletes in the world will star in the London 2012 Olympics - and many more will figure in the Paralympic games which will follow.

Thousands of disabled competitors will be straining every sinew not just to win gold, but also to convince the world their sporting prowess matches that of Usain Bolt and the rest.

HARDtalk's Stephen Sackur spoke to Dame Tanni Grey-Thompson who won 11 Paralympic golds on the track, and is now an influential voice in UK sport.

Watch the full interview on BBC World News on Monday, 15 August at 03:30 GMT, 08:30 GMT, 15:30 and 20:30 GMT and on the BBC News Channel on Monday 15 August at 04:30 BST and Tuesday 0430 at 00:30 BST.