US sprinter Justin Gatlin will return from a four-year doping ban with two races in Estonia next month, he said on Monday.
The Olympic 100 metres champion's options includes appealing to the International Association of Athletics Federations, taking the case to the Court of Arbitration for Sport or filing a federal lawsuit.
A US federal court in Gatlin's hometown of Pensacola, Florida, held a one-day hearing on a request for a preliminary injunction that would allow the 26-year-old Gatlin to take part in the trials in Eugene, Oregon. Gatlin, who attended the hearing dressed in a brown suit and was accompanied by family members, was suspended for four years after testing positive in 2006 for the male sex hormone testosterone.
US sprinter Justin Gatlin believes he is steadily catching up with Olympic and world champion Usain Bolt as the two head towards a likely showdown at the Rio de Janeiro Summer Games next year.
Olympic 100 metres champion Justin Gatlin has been banned for four years for a 2006 positive test for testosterone.
Ethiopia's Almaz Ayana ran the second fastest women's 5,000 metres in history as she missed out on the world record by just over a second at the Rome Diamond League in Rome, on Thursday.
A relaxed Usain Bolt led a quartet of Jamaicans into the world 100 metres final later on Sunday by flexing his legs to win his semi-final in 9.92 seconds.
American Justin Gatlin stepped up his preparations for the Rio Olympics with an impressive victory in the 100 metres at the Diamond League in Shanghai on Saturday.
Kerley, hoping to be the first American winner since Justin Gatlin in 2004, ran brilliantly for second, with De Grasse finishing fast in another lifetime best.
It was Gatlin's second positive test, which under anti-doping rules could have resulted in a life ban.
By his own charismatic admission, Usain Bolt is a living legend. But if the Jamaican sprint king pulls off only part of his stated goals in Rio de Janeiro, a whole new vocabulary of superlatives will be required. Arguably the greatest sprinter in history, Bolt already owns the world records for the 100 meters and 200m. In London four years ago, he completed an unprecedented "Double Triple" by retaining the 100m, 200m and 4x100m crowns won four years earlier in Beijing.
Gatlin stormed to the lead in the final 20 metres and defeated favoured youngster Christian Coleman in the 100 metres final at the US nationals/world championships trials on Friday.
Controversial sprinter Justin Gatlin does not understand why people insist on calling him a two-time drug cheat.
No spectators were present in the stadium, where the Games' opening and closing ceremonies will be held,
The American became only the third man to win both the 100 and 200 at a world championships.
The US sprinter was asked not to run in championships because of his initial positive drugs test, a source said
Justin Gatlin clocked 9.88 seconds to outperform Asafa Powell in separate 100m races
Usain Bolt has already started his preparations for next year's Rio Games and has sent a warning to his competitors.
The 23-year-old Jamaican destroyed his rivals in Zurich to equal the record of 9.77 seconds he shares with American Justin Gatlin.
Lauryn Williams clocked 10.93 seconds to join men's gold medallist Justin Gatlin as a world champion.
He won the world 100 metres gold medal in the biggest winning margin in the history of the championships.
The Jamaican clocked 9.77 seconds at the British Grand Prix meeting in Gateshead.
The Olympic and world champion said he still considers himself the fastest man in the world.
Justin Gatlin's world record in 100m has been amended to 9.77 seconds from 9.76 seconds due to an error in reading the result
Sifan Hassan of the Netherlands broke the 23-year-old women's mile world record on Friday when she clocked four minutes 12.33 seconds in a race dedicated to former American runner Gabe Grunewald, who died from cancer last month at the age of 32.
The awards are presented annually to the outstanding U.S. male and female athletes.