Jamaican sprinter Asafa Powell has appealed against the 18-month-ban he received for failing a drugs test last year.
The former world record-holder tested positive for the stimulant oxilofrine last July, and was handed the ban in April this year.
Powell, however, has requested the Court of Arbitration for Sport cuts the ban - due to run until December - down to three months.
The 31-year-old had previously claimed the failure of the test was because of a food substance he had eaten, and that he therefore planned to appeal.
He was quoted in Athletics Weekly in April as saying that he was going to contest the ban.
He said: "Sanctions for a stimulant and this kind of infraction usually range from public warnings to a ban of three months, six months in the most extreme cases.
"I was and am still more than prepared to accept a sanction that is in line with the offence."
As a result of the ban, Powell missed last year´s World Championships in Moscow, while he is also set to miss the Commonwealth Games in Glasgow, due to begin in July.
Powell won the gold medal in the 100m at the 2006 Games in Melbourne and would have been one of the favourites had he been competing.
The date of the hearing has yet to be relieved.
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