At The Heart of the Games - Vanessa talks to the man with his hands on the most coveted medal in world sport

If all goes as planned, on Sunday night Usain Bolt will go for Gold in the 100m final at the Olympic Stadium.

However, before the medal is placed round his neck it will have been carried out in front of 70,000 fans by a 23 year old graduate student from Tunbridge Wells.

Vanessa Feltz caught up with Andrew Donaldson, Olympic Medal Bearer, before his big day...