The World Anti-Doping Agency (WADA) will appeal the Greek decision to clear sprinters Kostas Kenteris and Katerina Thanou of evading drug tests if the sport's governing body does not.
WADA chief Dick Pound said the Greek Athletics Federation's decision "is strange but not surprising." Kenteris and Thanou were exonerated by their federation on Friday of dodging drug tests before last summer's Athens Olympics. They had faced possible two-year bans.
Pound says if the International Association of Athletics Federations does not contest the ruling, WADA would take the case to the Swiss-based Court of Arbitration for Sport.
The sprinters face trial later this year on criminal misdemeanor charges of faking a motorcycle accident to evade drug testing. Their coach, Christos Tzekos, was suspended from athletic competition for four years for failing to properly notify the runners of the drug tests. He was cleared on separate allegations of distributing banned substances.
Some information for this report provided by AP and Reuters.