The International Association of Athletics Federations (IAAF) has suspended Greek sprinters Kostas Kenteris and Katerina Thanou for missing doping tests just before the Athens Olympics.
The two runners pulled out of the Games after failing to show up for out-of-competition drug tests and spending four days in the hospital after allegedly crashing a motorcycle.
The IAAF said that it did not accept the sprinters' explanation of why they missed previous drug tests in Chicago and Tel Aviv. The track governing body said the sprinters' coach Christos Tzekos was also suspended pending a hearing before the Greek Federation.
The sprinters could face a ban of at least two years. No date has been set for the hearing before the Greek Federation and the sprinters will have the right of appeal.
Kenteris, the 2000 Olympic 200 meters champion, and Thanou, the 2000 women's 100-meters silver medalist, also face a criminal hearing over the missed tests. Greek prosecutors have also charged the pair with faking a motorcycle crash.
Some information for this story provided by AP and AFP.