Eight-time Olympic champion Usain Bolt will retire from athletics after the IAAF World Championships, which begin today (August 4).
He has dominated his sport for almost 10 years - but how well do you know the Jamaican?
Can you reel off his freakishly quick times? How much do you really know about chicken nuggets?
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Will you revel in glory like the great sprinter or be an also-ran like his competitors? There’s only one way to find out! Try CNN Sport’s quiz to prove your sporting knowledge.