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Usain Bolt will take to the track for his last competitive individual 100 metre race at the 2017 World Athletics Championships.

The Jamaican double world record holder has been the figure head of track and field, dominating both the 100m and 200m events.

As well as his pure speed, Bolt is known for bringing his personality to the world stage, attracting fans from all over... And someone who knows him extremely well is his executive manager, Nugent Walker, who has been by his side since they first met at school when they were six years old.

He let us inside the world of the fastest man on earth.