Sport James Dasaolu last year ran the second-fastest 100m time by a British sprinter ever

As James Dasaolu settles in the blocks for his first race of the season in Glasgow on Saturday there will be a sense of expectation and apprehension over whether he can back up his breakthrough year.

Sam Bennett wins the Tour of Britain’s fifth stage in Caerphilly

Tour of Britain: Sir Bradley Wiggins pays tribute to team-mates after surviving tough day

If he didn't appreciate the value of teamwork already, then a day spent repelling numerous attacks in the Brecon Beacons was enough to ram it home. Sir Bradley Wiggins paid tribute to his Team Sky colleagues last night after he retained his lead in the Tour of Britain today on a gruelling stage five that pushed the 2012 Tour de France winner to his limits.

Mo Farah and Haile Gebrselassie meet in the Great North Run

Mo Farah’s greatness on the line against Ethiopian marvels Haile Gebrselassie and Kenenisa Bekele

There have been crossroads in Mo Farah’s life defined by Haile Gebrselassie.

Simple, flat shoes cause less damage than cushioned trainers

Old-fashioned plimsolls with flat soles are better for kids' feet

Modern trainers with thick heels makes it more difficult for young people to learn to run using the front foot

Asafa Powell and Sherone Simpson learn their fate yesterday

Asafa Powell faces ban after drug-test B sample proves positive

Asafa Powell and four other Jamaican athletes who failed drugs tests earlier this year have each returned adverse analytical findings in their B samples, the Jamaica Anti-Doping Commission revealed last night.

Usain Bolt on the podium with his third gold of the Championships and eighth gold at the Worlds overall (Jamie Squire/Getty Images)

Usain Bolt confirms plan to retire after Rio de Janeiro Olympics

But he plans to continue his dominance of the sport until then as he looks to become the most successful sprinter of all time

Society Rock suffered concussion after a fall on Sunday

Fanshawe’s Rock hits hard place and misses Haydock

Injured sprinter ruled out of rematch with Lethal Force, as Fugue is handed Irish option

Usain Bolt

Usain Bolt delighted with latest win in Diamond League

Jamaican powered through after slow start

Tyson Gay celebrates after winning the Men's 100 m event during the Diamond League Athletics meeting

Steroid found in sample of banned US sprinter Tyson Gay

Details emerge of substance that led to ban

Asafa Powell has blamed his failed test on a supplement

Robin Scott-Elliot: Athletics risks being dragged down by lack of speedy action over Jamaica's drugs scandal

It is the question every athlete or cyclist who achieves something out of the ordinary will be asked for now and probably ever more: Are you clean? Did you run the 100m at lightning speed without illegal aid? Did you scale that mountain dancing on your pedals without an unnatural high?

The Great Britain 4x100m relay team of (left to right) Adam Gemili, Harry Aikines-Aryeetey, James Ellington, and Dwain Chambers celebrate their bronze - but they were soon notified of their illegal changeover
Usain Bolt (second from right), celebrates with Jamaican 4x100m team-mates (left to right) Nickel Ashmeade, Kemar Bailey-Cole, and Nesta Carter
Tiffany Porter, left

World Championships: Christine Ohuruogu sets example as medals keep coming

Following on from Mo Farah's flying finish in the 5,000m final on Friday, the British medals kept coming in the home straight of the Luzhniki Stadium on the penultimate day of the track and field World Championships. First Christine Ohuruogu, winner of the individual 400m crown on Monday, anchored the women's 4 x 400m relay team to bronze. Then Tiffany Porter – the 100m hurdler from Michigan with the British parents and the UK passport – took bronze in her final.

Great Britain's Adam Gemili after his 200metre final on seven of the 2013

World Championship: Adam Gemili quickly making up ground after career change

And to think… instead of settling into his starting blocks next to Usain Bolt in the World Championship 200m final yesterday, Adam Gemili might have been lining up for Dagenham and Redbridge at Glanford Park, home of Scunthorpe United.

Usain Bolt, centre, leads the field, including Adam Gemili, left, in his 200m victory in Moscow

World Championships: Usain Bolt triumphs again in league of his own

Jamaican secures his seventh world gold by defending 200m title with ease, while Briton Gemili narrowly misses out on medal

Mo Farah stretches away to take 5,000m gold in Moscow last night

World Championships 2013: Feel-good Friday for Mo Farah as British superstar completes incredible 'double double'

The best efforts of Africa’s finest cannot deny the superstar of distance running his double double glory on the Moscow track

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voicesGood for Lana Del Rey for helping kill that myth, writes Grace Dent
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The Pipes and Drums of The Scottish Regiments perform during the Opening Ceremony for the Glasgow 2014 Commonwealth Games at Celtic Park on July 23, 2014 in Glasgow, Scotland.
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Karen Dunbar performs
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Members of the Scotland deleagtion walk past during the opening ceremony of the 2014 Commonwealth Games at Celtic Park in Glasgow on July 23, 2014.
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The Tour de France peloton rides over a bridge on the Grinton Moor, Yorkshire, earlier this month
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Screwing your way to the top? Good for Lana Del Rey for helping kill that myth

Screwing your way to the top?

Good for Lana Del Rey for helping kill that myth, says Grace Dent
Will the young Britons fighting in Syria be allowed to return home and resume their lives?

Will Britons fighting in Syria be able to resume their lives?

Tony Blair's Terrorism Act 2006 has made it an offence to take part in military action abroad with a "political, ideological, religious or racial motive"
Beyoncé poses as Rosie the Riveter, the wartime poster girl who became a feminist pin-up

Beyoncé poses as Rosie the Riveter

The wartime poster girl became the ultimate American symbol of female empowerment
The quest to find the perfect pair of earphones: Are custom, 3D printed earbuds the solution?

The quest to find the perfect pair of earphones

Earphones don't fit properly, offer mediocre audio quality and can even be painful. So the quest to design the perfect pair is music to Seth Stevenson's ears
US Army's shooting star: Lt-Col Steven Cole is the man Hollywood calls when it wants to borrow a tank or check a military uniform

Meet the US Army's shooting star

Lt-Col Steven Cole is the man Hollywood calls when it wants to borrow a tank or check a military uniform
Climate change threatens to make the antarctic fur seal extinct

Take a good look while you can

How climate change could wipe out this seal
Should emergency hospital weddings be made easier for the terminally ill?

Farewell, my lovely

Should emergency hospital weddings be made easier?
Man Booker Prize 2014 longlist: Crowdfunded novel nominated for first time

Crowdfunded novel nominated for Booker Prize

Paul Kingsnorth's 'The Wake' is in contention for the prestigious award
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Vladimir Putin employs a full-time food taster

John Walsh salutes those brave souls who have, throughout history, put their knives on the line
Tour de France effect brings Hollywood blockbusters to Yorkshire

Tour de France effect brings Hollywood blockbusters to Yorkshire

A $25m thriller starring Sam Worthington to be made in God's Own Country
Will The Minerva Project - the first 'elite' American university to be launched in a century - change the face of higher learning?

Will The Minerva Project change the face of higher learning?

The university has no lecture halls, no debating societies, no sports teams and no fraternities. Instead, the 33 students who have made the cut at Minerva, will travel the world and change the face of higher learning
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Feet treat: 10 best pedicure products

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Commonwealth Games 2014: Great Scots! Planes and pipers welcome in Glasgow's Games

Commonwealth Games 2014

Great Scots! Planes and pipers welcome in Glasgow's Games
Jack Pitt-Brooke: Manchester City and Patrick Vieira make the right stand on racism

Jack Pitt-Brooke

Manchester City and Patrick Vieira make the right stand on racism
How Terry Newton tragedy made iron men seek help to tackle their psychological demons

How Newton tragedy made iron men seek help to tackle their psychological demons

Over a hundred rugby league players have contacted clinic to deal with mental challenges of game