WATCH: The trailer for Usain Bolt's new documentary shows a doubting side to the star

Bolt won three gold medals at Rio 2016

BY Daniel Kelly 13:17 Wednesday 19 October 2016, 13:17 19 Oct 2016

Picture by Steven Paston PA Wire/PA Images

Nine Olympic goal medals and 11 more in the World Championships.

Usain Bolt will retire as the greatest sprinter of all time. The World Record holder over 100 and 200 metres, Bolt also has the quickest time over 150 metres, but the distance is not recognised by the IAAF.

Having entered the final phase of such an illustrious career, a documentary, titled 'I Am Bolt' has been released about the Jamaican.

Cameras followed Bolt for 18 months as he prepared for his final Olympic Games. In Brazil, he defended his 100, 200 and 4x100 metre titles, to win what was called the triple-triple.

The trailer shows Bolt's doubts ahead of Rio when he asks "Every year, I worry; 'Am I still fast?'" By now, we all know the answer to that. 

'I Am Bolt' is globally released in November. 

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