Jamaica sprint superstar, Usain Bolt, has announced his retirement after London 2017 worlds championships. He initially planned his retirement in 2016, but his sponsor asked him to go on for another year, he said.

Bolt will be doing one event, the 100, he hopes to add to his collection of eight world titles and also wants to break the 100 m world record of 9.58 secs that he set at the 2009 worlds in Berlin, and to retire on a winning note….

usain Bolt.

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