Former world 100 metres record holder Tim Montgomery will learn whether he faces a lifetime ban from athletics on Tuesday.
The Court of Arbitration for Sport will announce its decision on the 30-year-old who has been charged by the United States Anti-Doping Agency with taking performance-enhancing drugs in connection with the Bay Area Laboratory Co-operative (BALCO).
Montgomery, the partner of former Olympic champion Marion Jones, has never failed a drugs test but the USADA charged him based on information gleaned from materials taken in raids on BALCO.
Three-time sprint relay champion Chryste Gaines will also learn her fate after being charged with the same offences.
The pair had declined arbitration by the USADA, instead going directly to CAS whose decision is final without recourse to appeal.
Former world indoor 200m champion Michelle Collins received an eight-year ban - later reduced to four years on appeal - based on information obtained during raids on BALCO, again despite never failing a test.
USADA accused BALCO of being the source of the previously undetectable designer steroid THG (tetrahydrogestrinone) and the scandal involved some of athletics' top names, including Britain's Dwain Chambers and former double world champion Kelli White who both received two-year bans.
Chambers was second behind Montgomery when the American set a new world record of 9.78 seconds in Paris in September 2002.