Bolt: World Championships will be my swansong

Usain Bolt has confirmed he will take part in 100m and 4x100m relay at the World Championships in London in August, before hanging up his spikes for good.

The eight-time Olympic champion is finally ready to bring his illustrious career to an end – and he wants to go out on a high.

"My aim is to win in London. I want to retire on a winning note," the 30-year-old said on Wednesday.

Bolt's swansong takes place from August 4-13, with the 100m final set for Saturday the 5th and the 4x100m final the following Saturday.

At Rio 2016 last year, the Jamaican completed an unprecedented 'triple triple' of nine gold medals – three straight Olympic wins in the 100m, 200m and 4x100m. 

That has since been downgraded to eight after Bolt's Jamaican team-mate Nesta Carter, who was part of the victorious Jamaican 4x100m quartet in Beijing, tested positive for a banned substance.

Carter is appealing the decision.

Even without that medal, Bolt's achievements remain totally unmatched. Aside from dominating three straight Olympic Games, he also holds the world record in the 100m (9.58) and 200m (19.19).

Aside from his double outing in London, Bolt will compete in one other event, the 100m at the Diamond League event in Monaco on Friday.