ATHLETICS:OSCAR PISTORIUS will learn today whether his appeal against a ban on competing against able-bodied athletes has been successful.

The Court of Arbitration for Sport (CAS) are set to publish their ruling after the 21-year-old South African challenged an International Association of Athletics Federation (IAAF) ban imposed in January.

Following tests carried out on their behalf, the IAAF ruled his prosthetic legs gave him mechanical support.

The IAAF gave their decision claiming they had "overwhelming scientific evidence," of his advantage after receiving a report from Prof Peter Bruggemann at the German Sport University of Cologne.

Prof Bruggemann's evaluation of last November's tests indicated the runner's "Cheetah" blades were technical aids, leaving IAAF council members with no real option but to impose their sanction.

Pistorius, who is particularly keen to compete at this summer's Olympic Games, gave evidence at last month's CAS hearing after further tests were carried out at the Massachusetts Institute of Technology.

The three-day hearing in Lausanne heard from experts that his blades do not give him an unfair advantage when racing able-bodied rivals.

If Pistorius is successful in his appeal, he is determined to compete over 400 metres in Beijing although he is yet to achieve the Games qualifying standard.

But after establishing a high profile already by competing against against able-bodied athletes last year, there will be plenty of opportunities to achieve the required time.

Pistorius needs to clock the "A" standard of 45.55seconds or the "B" qualifier of 45.95 if no other South African should attain the higher one.

Although it will be scant consolation if he loses the appeal, Pistorius, who was born without fibulas and had his legs amputated below the knee when only 11 months old, remains eligible to compete at the Paralympics.

Meanwhile, Dwain Chambers will confess to anti-doping chiefs today that he was on an astonishing cocktail of seven banned drugs in 2003.

The British sprinter tested positive for the designer steroid THG in August of that year, and received a two-year ban.

But it has now been revealed he was also taking human growth hormone, the blood-boosting drug EPO, insulin, a testosterone - epitestosterone cream, a drug called modafinil used to promote alertness, and finally liothryonine, a synthetic form of thyroid hormone.

Chambers is meeting British sport's anti-doping chief John Scott today as part of his campaign to come clean, and hope to gain a place in the British Olympic team.

He will provide Scott with an explosive letter written by his American drugs supplier Victor Conte detailing his actual drugs use.

Conte's letter says: "This was the most sophisticated doping programme in the history of sport."

The 30-year-old's lawyer Nick Collins said: "I can confirm we are meeting John Scott."

The letter from Conte, which reads like a cheat's charter, reveals most of Chambers' drugs were used in cycles of three weeks on, one week off during the winter training period in conjunction with an intense weight-lifting programme.

Chambers has recently been released by rugby league side Castleford after a month's trial and has returned to sprint training.

He needs to overturn the British Olympic Association's lifetime ban if he is to be able to compete at the Beijing Games.