Sport

Since his blistering run of 9.91sec in the 100 metres semi-final at the UK Trials, James Dasaolu has become something of an invisible man in sprinting terms. After becoming only the fourth Briton to dip under that dream 10sec barrier, the hope – in fact, expectation – was that Dasaolu would back that up... and soon.

Tyson Gay and Asafa Powell failed drug tests earlier this month

Exclusive: Wada chief John Fahey to target the cheats behind the drug cheats

Anti-doping chief to introduce new code that allows athlete’s team to also be held accountable

Dwain Chambers was eliminated in the first round of the 60m

GB's brave new world begins with whimper as Dwain Chambers misfires

It promises to be a super enough Saturday for the British track and field team in their first engagement since the home Olympics but for one of the country’s most prolific indoor performers the European Championships got off to a Friday flop of a start in Gothenburg yesterday.

The GB bob with Craig Pickering as brakeman at the back (left) and as a 60m sprinter

Pickering and mix: Sprinter Craig takes on bobsleigh runs

Indoors specialist aims for summer and winter Olympic double as he makes it into Britain's two-man bob team, writes Simon Turnbull

Adam Gemili admits he set off too early, but the handover was hardly clean

Team GB sprinters pick up baton from previous disasters as relay goes off track at London 2012

No one actually dropped the baton this time, which is progress of sorts, but Great Britain's men's 4 x 100m relay squad still managed to get disqualified in their heat, the fifth time they have done so in the past six major competitions.

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.

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.

Mo Farah: Is a serious medal contender for Great Britain in the men's 10,000m this evening

Weekend Preview: Swimmers have sunk but expect GB medals to flow

The main event on what could be a glorious weekend for British athletics is the culmination of the women's heptathlon. After a strong start from Jessica Ennis, and a surprisingly good one from Katarina Johnson-Thompson, the heptathlon has its final events tonight.

August 3, 2012: Carl Myerscough of Team GB saw his Olympic dream end today when he finished a lowly 29th in the shot put

Olympic dream lasts less than an hour for Team GB shot putter Carl Myerscough

Great Britain shot putter Carl Myerscough waited 12 years for his Olympic dream to become reality.

The 38-year-old Jo Pavey took silver in the women’s 10,000m

Buck stops the rot after another GB relay disaster

Five days of action for the British team at the European Championships came to an end in Helsinki last night when Richard Buck crossed the line to secure second place for the men's 4 x 400m relay team. It was a silver lining, one of two on the final day, that took the GB medal haul to seven but after yet another Great British sprint relay disaster it was doubtful that the buck would stop there.

Adam Gemili confirms Olympics appearance

Teenage sprinter Adam Gemili has confirmed he does plan to compete at the London Olympics.

Flight of fancy: Two-time Olympian Roald Bradstock holds the world records for throwing iPods and goldfish

Roald Bradstock: Still throwing caution to wind after half a century

It was on 10 June 1984 that Roald Bradstock took part in his first Olympic trials. "It was in Gateshead, and on my very first throw I pulled my groin," recalls the javelin thrower and professional artist who has come to be known as "the Olympic Picasso". "It was the most excruciating pain. I just had that one throw – 74 metres – with one hand in the air and one hand on my leg."

David Millar has served a two-year ban for using EPO in 2004

Armstrong confronted with legal charges by US drug authorities

The United States Anti-Doping Agency have initiated legal proceedings over allegations of doping against seven-time Tour de France winner Lance Armstrong.

Usain Bolt (left) eased to victory in Ostrava last night

Grimacing Bolt on his knees after win

Usain Bolt eased to victory in Ostrava last night, but his post-race reaction was somewhat unusual.

Usain Bolt (left) wins the 100m at the Jamaica Invitational

Lightning Usain Bolt sends reminder of supremacy

Far from the madding crowd at the 2012 Olympic Stadium on Saturday night, the athlete most likely to emerge as a class act on the big stage come Games time got his season off to a flying start in the early hours, British-time, yesterday. Running in his first individual race of the year, the 100 metres in the Jamaica Invitational meeting at the National Stadium in Kingston, Usain Bolt emerged victorious in 9.82 seconds – the fastest time in the world in 2012 and his quickest-ever season opener.

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