The head of the former Bay Area Laboratory Co-Operative (BALCO) laboratory Victor Conte says he is going to release the names of Olympic athletes he believed were involved in doping.
Conte says he will give the names to the World Anti-Doping Agency president Dick Pound tomorrow.
The International Olympic Committee, IOC, yesterday delayed a decision to reallocate medals won by Marion Jones at the 2000 Games.
The IOC says the delay is necessary because more athletes might be involved in the BALCO scandal.
Jones, who won five medals in Sydney including three golds, has returned her medals after confessing to using drugs.
Three Jamaicans, Tayna Lawrence, Merlene Ottey and Bev McDonald, are among the athletes to be upgraded.