Usain Bolt is planning to retire after the Rio 2016 Olympic Games, the Jamaican sprinter has suggested.
The six-time Olympic champion claimed three golds at the World Athletics Championships in Moscow to eclipse Carl Lewis and Allyson Felix as the most successful athlete in the meet's history.
Bolt is the current 100m and 200m world record holder and is regarded as one of the most recognised personalities in modern-day sport
"I think it will be a good time to retire, on top and just been dominating for so long," Bolt said on retirement in 2016.
He added: "If I want to be among the greats of [Muhammad] Ali and Pele and all these guys, I have to continue dominating until I retire."
The 26 year old did the sprint treble at both the Beijing and London Olympics and should he repeat the feat he would draw level with Lewis and go second in the all-time list for most Games gold medals.
However, following a string of Jamaican doping scandals in 2013, Bolt's participation at the Olympic Games is in doubt after World Anti-Doping Agency director-general David Howman warned the countries' drugs problem could rule the country out of the athletics events.
Veronica Campbell-Brown was revealed to have tested positive for a banned substance while in July five Jamaican athletes, including former Olympic champion Asafa Powell, were reported to have failed tests.
And Howman warned: "Our normal approach if we have issues falling into the category of either complaint or concern is to try to work with the particular signatory - in this case the [national anti-doping agency] - and remedy it.
"If nothing happens, we can ask our board to declare any of the signatories non-compliant and that has implications as to whether teams from the country would be admitted into various events.
"We report the non-compliance to people who can then consider whether other sanctions ought to follow. That would be the International Olympic Committee and International Association of Athletics Federations and so on."
Bolt competes for the final time this season at Friday's Diamond League meeting in Zurich.
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