Dwain Chambers is seen by many as the biggest threat to America's domination of the 100m.
Sprinter Dwain Chambers and cyclist David Miller will be cleared to compete in this year's London Olympics when the Court of Arbitration (CAS) over-rules a British Olympic life ban on drug offenders, a source with knowledge of the ruling told Reuters on Sunday.
Reader Smita Sukumar sent us this picture from London.
Dwain Chambers achieved the first stage in his bid to run at the Beijing Olympics when he won the 100 metres final at the British trials on Saturday and must now await a legal ruling on his eligibility.
Sprinter Dwain Chambers and shot putter Carl Myerscough, who have served doping bans after testing positive for anabolic steroids, were named on Tuesday in the British athletics team for the London Olympics.
The British Olympic Association (BOA) will seek a hearing before the Court of Arbitration for Sport (CAS) to determine the legality of its eligibility rule which bans athletes who have served drugs bans from competing at future Olympic Games.
Sprinter Dwain Chambers and cyclist David Millar were cleared to compete in this year's London Olympics after the British Olympic Association's (BOA) lifetime Games ban on drug offenders was overturned by the Court of Arbitration for Sport on Monday.
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.
Britain's Dwain Chambers clocked a championship record 9.99 seconds to win the men's 100 metres at the European team championship in Bergen on Saturday. Chambers held off Frenchman Christophe Lemaitre, who finished second in 10.02 seconds, and Italy's Emanuele Di Gregorio, third in 10.20.
The world championships 100 metres cast played their parts to perfection on Saturday as Usain Bolt and Tyson Gay took centre stage, backed up by a comedy cameo from Asafa Powell and Dwain Chambers as villain.
Sprinter Dwain Chambers has been stripped of his 2002 European 100 metres title after admitting he took the steroid THG that year.
Sprinter Dwain Chambers won a silver medal in the world indoor championships on Friday, finishing second behind Nigeria's Olusoji Fasuba and level with Kim Collins of St Kitts. The 29-year-old, who is trying to resurrect his athletics career following a two-year doping ban imposed in 2003, clocked a personal best time of 6.54 seconds, the same as Collins who was also awarded silver and three hundredths behind Fasuba.
Dwain Chambers is to attend a UK Athletics independent drugs disciplinary hearing on Thursday, British newspapers reported.
The Olympic Games' central sport is tarnished and discredited even as officials have scrambled to defend its credibility.\n\n
Three-time world champion Maurice Greene eased through his opening heat in the 100 metres atthe World championships.
The Jamaican clocked 9.77 seconds at the British Grand Prix meeting in Gateshead.
The British 4x100 relay team at the 2003 world athletics championships were stripped of their silver medal after Dwain Chambers decided not to appeal against his two-year ban for doping.
: The European 100 metres champion failed a test for the new designer steroid THG
The European 100 metres champion was banned for two years on Tuesday after failing a test for the new designer steroid THG.
The European sprint champion denied the 'wilful' taking of any banned substance, his lawyer has said in a statement.
Officials switched from electronic to manual timing which resulted in a time of 9.53 seconds -- 0.25 of a second inside the official world record at the London Grand Prix.
Yulia Stepanova, the key whistleblower in the Russian doping scandal that almost led to her country being completely excluded from the Rio de Janeiro Games, will miss the Olympics after the runner was controversially ruled out due to her doping past.