Sport Sir Craig Reedie is more laid-back in his approach than his predecessor at Wada

The new president of the World Anti-Doping Agency had a simple-sounding new year resolution: “I just want to make sport cleaner.” Sir Craig Reedie knows he will never eradicate doping. Just a month into his new role, he says: “People still cheat and that is regrettable.”

Usain Bolt looks close to his best once more in 100m semi-finals

Seven of the eight qualifiers for tonight's 100m Olympic final ran under 10 seconds in the semi-finals as defending champion Usain Bolt looked close to his brilliant best once more.

Cruise control: Jamaica's Usain Bolt (bottom) strolls to victory in his 100 metres heat

The Calvin Report: Bolt must beware Beast and Bad Boy

The men's 100m world record-holder no longer exudes certainty – unless the Jamaican is bluffing

August 4, 2012: Dwain Chambers after competing in the 100 metres at the Olympic Stadium

Team GB's Dwain Chambers impresses on 'nerve-racking' return to Olympics fold

Great Britain's Dwain Chambers waited 12 years to get back to the Olympics. It could end up being a triumphant return.

Usain Bolt wins his 100m heat in 10.08 seconds

Usain Bolt breezes into 100 metres semi-finals at rapturous Olympic Stadium

Defending champion Usain Bolt strolled into the semi-finals of the 100 metres today as Olympic history was made on a lightning fast track in London.

What gives Usain Bolt the edge over his rivals?

The science of sprinting

What is it about Usain Bolt – who begins the defence of his Olympic title today – that gives him an edge over his stockier, more powerful rivals? Steve Connor investigates

Three-times gold medallist Ben Ainslie

Q&A with Team GB's sailinggold medal hope Ben Ainslie

Three-times gold medallist Ben Ainslie talks about his first Olympic memory what he would do if he wasn't a sailor.

#Romneyshambles: 'Some Americans just shouldn't leave the country', says Carl Lewis

"Stay home if you don't know what to say," says nine-times gold medal winning sprinter

Jamaica's Usain Bolt unexpectedly said last night he may add the 4x400m to his list of London 2012 events and chuckled at any fitness concerns

Lightning Bolt to strike four times in same place

Usain Bolt was not exactly quick out of the blocks on his first official engagement in London in 2012 last night. The world's fastest man was 45 minutes late at the Jamaica Olympic Association's pre-Games press conference at a converted brewery in Brick Lane.

Jamaica's Usain Bolt unexpectedly said last night he may add the 4x400m to his list of London 2012 events and chuckled at any fitness concerns

Lightning Usain Bolt may strike four times in same place at London 2012 Olympics

World's fastest man could add 4x400m challenge to defence of his three sprint crowns

Usain Bolt says ahead of London 2012 Olympics: 'I'm ready to go'

Usain Bolt has revealed he will be "ready to go" at the London Olympics after recovering from a stiff back and hamstring problems.

400m runner Dane Hyatt was among the Jamaican athletes appearing at an open training session in Birmingham

No show from Usain Bolt and Yohan Blake but sprint pair are on track for Olympics

Speculation over Bolt's form and fitness following losses to Blake

1936, Lilian Baylis Studio, Sadler’s Wells, London

The versatile Tom McNab – former Olympic coach, best-selling novelist, athletics historian and playwright – was the technical director on the Oscar-winning Chariots of Fire, the stage version of which is now topically and lucratively installed in the West End.  McNab’s play 1936 homes in, though, on a period when the activities of the International Olympics Committee were at their most questionable and explores to what degree the ideal of sport being above politics is ever practicable. 

Last Night's Viewing: Victoria Pendleton: Cycling's Golden Girl, BBC1
The Wrestlers: Fighting with My Family, Channel 4

Always warm-up first. The BBC understand this First Commandment of athletic preparation and so as the Olympics approach – a massive fixture for the armchair sportsman – they traditionally lay on a schedule of light stretching and eyeball calisthenics to get us ready for the main event.

Yohan Blake won the 100m in Lucerne last night in a meet-record time of 9.85 sec

Blake increases the heat on Bolt with Lucerne victory

Yohan Blake was in record-breaking form in Switzerland last night as he applied the finishing touches to his preparations for his double-headed Olympic showdown with his training partner and Jamaican team-mate Usain Bolt.

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