Doping in spotlight despite Beijing fireworks

A thrilling world athletics championships in Beijing failed to silence growing questions about doping, giving the sport's new boss Sebastian Coe much to ponder as he heads towards an Olympic year.
While sprinter Usain Bolt led a barrage of superstar performances at the Bird's Nest stadium, scepticism was also not hard to find following allegations of widespread drug abuse by elite athletes.
Britain's Coe won a narrow vote to succeed 82-year-old Lamine Diack as president of world body the IAAF, and improving the besmirched image of athletics will be his top priority.
"We are more than a discussion about test tubes, blood and urine," Coe told reporters yesterday. "It is ostensibly a clean sport, we have our challenges... And no one would deny that."

However, after thousands of test results were leaked to media before the championships, the issue of doping was never far away and many of the positive headlines were accompanied by darker questions.
Kenya finished top of the medals table, but they were also the only team to fail doping tests after two of their athletes were caught out by pre-competition controls.

Bolt's brilliant sprint treble after overcoming injury came at the expense of twice-banned American Justin Gatlin -- one of four former doping offenders in the 100m final.
When the Netherlands' Dafne Schippers ran the fourth fastest 200m in history, adding gold to her 100m silver, she immediately had to deny using chemical enhancement.

And Briton Mo Farah's unprecedented second straight world distance double came against the backdrop of doping allegations fired at his coach, Alberto Salazar.
- Flying down to Rio -
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Bolt's reign as world sprint king was under serious threat from Gatlin, who was on an unbeaten streak of 28 races and had led the way in the 100m and 200m this year.