Bolt within a whisker of Lewis' eight world golds
If Jamaican sprint star claims victory in three events, he will equal American's record - a ray of sunshine in doping cloud at championships

Jamaican sprint star Usain Bolt goes into the World Athletics Championships within touching distance of equalling American legend Carl Lewis' record of eight world gold medals.
Bolt's presence, along with Britain's double Olympic 5,000-10,000m champion Mo Farah, will at least offer a ray of sunshine to a sport that has been rocked by a series of doping offences.
There is also a long list of star performers ruled out through injury, not least of all defending 100m champion Yohan Blake of Jamaica, Kenyan 800m master David Rudisha and Olympic heptathlon champion Jessica Ennis-Hill.
Blake claimed victory in Daegu two years ago after Bolt's false start in the final of the blue riband event and was disqualified.
Make no mistake that Bolt is in the Russian capital to top the podium in an event he has dominated since taking gold in the Beijing Olympics in 2008.