Jamaican sprinter Usain Bolt false-started and failed to finish in the 100m at the World Championships on Sunday and subsequently was disqualified for leaving the blocks far too early. Here are other athletes who faced disqualification after false starts.
Usain Bolt began his bid to complete an unprecedented Olympic sprint double-double when the Jamaican breezed through his opening 200 metres heat with the minimum of fuss on Tuesday.
Jamaican triple Olympic champion Usain Bolt will miss his second consecutive scheduled meeting of the season on Saturday so he can concentrate on training, his agent said.
Fresh from 100 metres glory Jamaica's Usain Bolt begins a highly anticipated 200m title defence at the London Olympics on Tuesday, while women's 100m hurdles world champion Sally Pearson is favourite to go one better than her silver in Beijing.
Usain Bolt lived up to all the hype of becoming a "living legend" at the London Games, decisively defending his 100-meter title by beating Jamaican training partner Yohan Blake in the defining race of the Olympics.
Usain Bolt of Jamaica won his second straight Olympic gold medal in the men's 100 metres on Sunday, crossing the line in an Olympic record 9.63 seconds. Bolt joined Carl Lewis as only the second man to go back-to-back in track's biggest race.
Penpix of the leading candidates for the men's Olympic 100 metres which gets underway with opening-round heats on Saturday.
Usain Bolt raced to the rescue to help fellow-Jamaican Samantha Albert on the long and tortuous road to the London Olympics. The triple Olympic sprint champion donated and signed three of his designer running shirts.
World 100 metres champion Yohan Blake showed he was in good heart to challenge compatriot Usain Bolt for Olympic sprint dominance in London by clocking 9.85 seconds to win at a meeting in Lucerne on Tuesday.
Many label him the 'Greatest ever sprinter' -- even ahead of Usain Bolt. Benjamin Sinclair 'Ben' Johnson, who presently runs a sports academy in Canada came calling to Goa with two of his wards -- both of whom appeared for trials for I-League champions Salgaocar.
Yohan Blake and not Usain Bolt may now be the man to beat in London Games but the mission remains the same with the 'The Beast' set to lead an all out assault by Jamaican sprinters on the Olympic medal podium.
Yohan Blake set himself up as the man to beat in London with a stunning 200 meters victory, beating world record holder Usain Bolt for a second time in three days to bring the Jamaican Olympic trials to an explosive conclusion on Sunday.
Jamaican triple Olympic champion Usain Bolt will not emulate his world record performances of 2008 and 2009 at the London Games, former holder Maurice Greene predicted on Tuesday.
After two decisive defeats at the hands of Usain Bolt in the space of five days, Justin Gatlin is showing the strain.
Jamaica's world record holder Usain Bolt was made to work for victory in the 100 metres at the Diamond League meeting in Oslo on Thursday.
Asafa Powell thinks he has pinpointed why he has so often failed to produce on the big occasion and believes that if he is at his best he will win the 100 metres at the London Olympics.
The world's greatest athletes descend on London in July for the 2012 Olympics. Martyn Herman highlights 10 to watch when the Games get underway.
Jamaican world champion Yohan Blake missed the fastest 100 metres of the year by the blink of an eye on Wednesday, his 9.84 seconds a mere 0.02 behind world record holder and training partner Usain Bolt's mark.
Ace Jamaican sprinter Yohan Blake met legendary batsman Sachin Tendulkar at his residence in Mumbai on Wednesday.
Reaction to Gatlin's win and Bolt's surprise defeat:
The high-profile pullouts will not have any bearing on swimming and the events will see tough competition in the Delhi Commonwealth Games, Olympic champion Roland Schoeman said on Saturday.
Jamaican triple Olympic champion Usain Bolt opened his 2012 season with a sizzling anchor leg as his Racers Track Club logged a World leading time of 37.82 seconds in a 4x100 metres relay, in Kingston on Saturday.
Pullouts by top athletes will not dilute the track and field competition, the organising committee of the Delhi Commonwealth Games said on Monday.
Not even Usain Bolt could overcome a big American lead as the US men sprinted to a convincing victory over Jamaica in the 4x100 metres relay at the IAAF World Relays in Nassau on Saturday.
Britain's Prince Harry achieved the impossible when he beat world's fastest man Usain Bolt in a friendly race as part of the royal's visit to Jamaica, in Kingston, on Tuesday.
A mentally ill British man who shouted abuse at Usain Bolt and threw a beer bottle on the track at the start of the men's Olympic 100 metres final was found guilty of a public order offence on Friday.
Usain Bolt, the world's fastest man, could possibly run 9.4 seconds over 100 metres at this year's London Olympics, Games organising committee chairman Sebastian Coe said.
Jamaica's Asafa Powell has pulled out of Friday's 100 metres showdown with triple Olympic champion Usain Bolt and American Tyson Gay in Stockholm because of injuries, his management company said on Wednesday.
There were tears and glory, a solitary world record and athletics firsts. There was even a Daegu curse. But for most, the story of the 13th world athletics championships will be disqualifications. Drama, of one kind or another, was ever-present against a backdrop of velvet mountains draped in mist.
Usain Bolt raced to redemption in 19.40 golden seconds on Saturday to retain his world 200 metres title while Anna Chicherova ended Blanka Vlasic's four-year run as high jump world champion.
Jamaican Usain Bolt was back to his best on Friday, cruising into the world championships 200 metres final with the greatest of ease before whipping the crowd into a frenzy in Daegu.
Jamaica's Usain Bolt kept the showboating to a minimum and swept through to the semi-finals of the men's 200 metres at the world championships on Friday.
Like the ever-present mist on Daegu's mountains, a gloom lingered over the world athletics championships on Monday morning as the shock of Usain Bolt losing his 100 meters title sank in.
Usain Bolt brought world-class pizzazz to the athletics world championships on Saturday where one Olympic champion ducked out without completing even a single pole vault and another was in tears after false starting in her 400 metres heat.
Gurjar, who attracted a lot of attention on social media earlier this month, finished last in a trial run conducted by the Sports Authority of India and the state government in Bhopal
Healthy and on a new nutrition program, Usain Bolt plans to launch his run-up to defending his 100 and 200 metres titles at the 2012 London Games with tune-up races in Jamaica next month, the world's fastest man said.
US world 100 metres silver medallist Tyson Gay had an arthroscopic procedure on his injured right hip and will not run again this year, his manager said on Thursday.
Over 50 people have been killed in Jamaica after sleuths stormed a drug gangster's bastion, emerging reports said. The violence has already spread to capital Kingstons, leaving more than 50 people hurt.
Usain Bolt gave a clear message to rival, friend and training partner Yohan Blake heading into Olympics year -- his 200 metres title is out of bounds in London.
Usain Bolt gave a clear message to rival, friend and training partner Yohan Blake heading into Olympics year -- his 200 metres title is out of bounds in London.