Jamaican sprinter Sherone Simpson to appeal 'incredibly unjust' ban
April 9, 2014 -- Updated 1212 GMT (2012 HKT)
Former Olympic gold medalist Sherone Simpson plans to appeal her doping ban, her agent says.
- Olympic sprint gold medalist Sherone Simpson is to appeal her doping suspension
- Simpson's agent Paul Doyle calls the 18-month ban "incredibly unjust"
- Simpson tested positive for banned stimulant oxilofrine at last year's Jamaican trials
- A ruling in the case of fellow Jamaican sprinter Asafa Powell is expected on Thursday
Follow us at @WorldSportCNN and like us on Facebook
(CNN) -- Olympic gold medalist Sherone Simpson of Jamaica plans to file an appeal with the Court of Arbitration for Sport (CAS) after receiving an 18-month doping suspension Tuesday, with her agent calling the ban "incredibly unjust."
Simpson, who won gold at the 2004 Olympics in the 4x100-meter relay, silver in the 100 meters at the 2008 Games and silver in the 4x100-meter relay at the 2012 Olympics, tested positive for the banned stimulant oxilofrine at last year's Jamaican national championships.
The 29-year-old revealed last year -- on the same day former 100-meter world-record holder Asafa Powell of Jamaica and former world champion Tyson Gay of the U.S. said they had tested positive for banned substances -- that she would never "intentionally take an illegal substance of any form" but Jamaica's anti-doping disciplinary panel Tuesday claimed she was "negligent," The Jamaican Gleaner newspaper reported.
Disgraced sprinter now fights doping
A history of doping exposed
Djokovic: Anti-doping system not working
How much damage has Armstrong done to cycling?
The ban is backdated to last June, which means Simpson would be able to return to competition this December.
"The panel has given no written explanation as to how or why they came to this decision," Simpson's agent, Paul Doyle, said in a statement sent to CNN. "We feel that this ruling is incredibly unjust and we will be appealing to the Court of Arbitration (for) Sport immediately."
Doyle added that the case for CAS should be "very straightforward."
"Sherone took a legal supplement that was contaminated with oxilofrine," said Doyle. "Two different labs that we commissioned to test the supplement both determined that oxilofrine was present and that it was not declared on the label.
"Additionally, on our advisement (the U.S. Anti-Doping Agency) ordered the supplement directly from the company and tested it themselves and confirmed the same. Subsequently, USADA has posted a warning on their website warning athletes not to take the supplement because it contains banned substances that are not declared on the label.
"These are the core facts of Sherone's case and cannot be disputed. Typically in such a case, the athlete is given a punishment ranging from a public warning to three months of ineligibility. The fact that the panel has given 18 months suspension and have provided no explanation as to why is unacceptable in our opinion."
It was a double blow Tuesday for Jamaican athletes, since discus thrower Allison Randall received a two-year doping suspension, The Gleaner said.
Powell, who also tested positive for oxilofrine, is expected to learn his fate Thursday. Simpson and Powell share the same physical trainer, according to The Gleaner.
Simpson will be hoping for the same ruling handed out by CAS in February in the case of decorated Jamaican sprinter Veronica Campbell-Brown.
Campbell-Brown, who has won more than a dozen Olympic and world championship medals, had her two-year ban for testing positive for a banned diuretic last May overturned.
Part of complete coverage on
From spectacular action at the Commonwealth Games , to high-speed drama on the race track, here are the week's best sporting images.
July 28, 2014 -- Updated 1606 GMT (0006 HKT)
Whisper it quietly, but after years of foreign domination the prospect of a French winner of the Tour de France is more than just a mere pipe dream.
July 28, 2014 -- Updated 1321 GMT (2121 HKT)
Seven years ago Steve Way was a 20 per day smoker and weighed a hefty 104 kg, but he led the marathon at the 2014 Commonwealth Games.
July 25, 2014 -- Updated 1317 GMT (2117 HKT)
After just one day of competition, a new sport has emerged at the Commonwealth Games in Glasgow: snapping selfies with the Queen.
July 25, 2014 -- Updated 2048 GMT (0448 HKT)
Inspirational cyclist Joanna Rowsell added another gold to her growing collection in the individual pursuit at the Commonwealth Games.
July 24, 2014 -- Updated 0404 GMT (1204 HKT)
At the opening ceremony of the Commonwealth Games in Glasgow, an actor upstaged the Queen by kissing a male dancer.
May 7, 2014 -- Updated 1200 GMT (2000 HKT)
Of course not. But former Fulham owner Mohamed Al Fayed seems to think the removal of Michael Jackson's statue was a very "bad" idea.
May 7, 2014 -- Updated 1636 GMT (0036 HKT)
Second-tier French side Clermont Foot appoint Helena Costa -- the country's first ever professional female coach of a male team.
April 25, 2014 -- Updated 1733 GMT (0133 HKT)
The All Blacks and their fans are focused on one thing, says Dan Carter: becoming the first rugby nation to win back-to-back World Cups.
April 4, 2014 -- Updated 1308 GMT (2108 HKT)
The 2002 bomb attacks in Bali had many victims -- including a touring rugby team from Hong Kong.
Photographer Danny Lyon spent three days with Muhammad Ali in 1972 and shares his best photos and memories of the champ.
February 25, 2014 -- Updated 1254 GMT (2054 HKT)
With a growing audience boosted by the drama of ice hockey on show in Sochi at the Winter Olympics, can the sport capitalize on its popularity?
January 20, 2014 -- Updated 1125 GMT (1925 HKT)
Her paintings may sell for thousands of dollars, but she is best known for a modeling shot 50 years ago that helped launch a business empire.
Today's five most popular stories