Appearing before the Court of Arbitration for Sport, Greek sprinters Konstantinos Kenteris and Ekaterina Thanou today accepted that they had breached anti-doping rules when the pair missed tests prior to and during the 2004 Summer Olympic Games, the sport's world governing body announced today.

Pending the outcome of their appeal to the CAS, Kenteris and Thanou, the 2000 Olympic 200 meter gold and 100 meter silver medallists respectively, were provisionally suspended by the IAAF on December 22, 2004, and will be re-eligible to compete on December 22 of this year.

The pair were initially cleared by SEGAS, the Greek federation, in late March. Calling the decision "erroneous," the IAAF appealed the decision to the CAS, whose rulings in sports arbitration cases is final.

They were officially charged with missing three tests between July 27 and August 12 and for failing to provide a urine and blood sample on August 12. In the widely-publicized case at the time, the pair claimed they missed their tests due to a motorcycle accident.