Watch: Usain Bolt's stunning 100m world record in 2009 – 'the most incredible piece of sprinting'
Watch when Usain Bolt broke 100m world record with historic time of 9.58 seconds that has not been beaten to this day - SportsAlert
Florida teenager Erriyon Knighton breaks Usain Bolt junior record | Athletics | The Guardian
Usain Bolt's mom says key to keeping him calm is laughter | Al Arabiya English
How Fast Is The Fastest Man Alive Run
Usain Bolt record collection: the sprint king's greatest hits
Who is Erriyon Knighton, the US sprinter that has broken Usain Bolt's 200m U18 record? - AS.com
A look back at Usain Bolt's 9.58s 100m world record in Berlin
Usain Bolt: The fastest man on earth bows out | Financial Times
Erriyon Knighton breaks Usain Bolt's under-18 200m world record | 20.11sec run by American teen
Usain Bolt Interview
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