NEW YORK - American cyclist Lance Armstrong was stripped of a bronze medal he won at the 2000 Olympic Games by the International Olympic Committee (IOC) on Thursday, hours before the airing of his interview with Oprah Winfrey in a talkshow.

The IOC said they had asked Armstrong to return his time-trial medal he won at Sydney, Australia, as he failed to appeal against the sanctions imposed by the International Cycling Union (ICU) before the deadline of three weeks.

Lance Armstrong takes part in a special session during the Clinton Global Initiative in New York in this file photo taken September 22, 2010.[Photo/Agencies]

Abraham Olano of Spain finished fourth in the race in 2000, which was won by Viasheslav Ekinov, Armstrong's ex-US Post Service teammate. Jan Ullrich of Germany took the silver.

Ekinov, general manager of the Katusha cycling team, had his team be dropped from the elite ProTeam list for this season because of ambiguous relationship with doping, while Ullrich is serving a two-year ban for doping.

Armstrong, whose record seven Tour de France titles were taken away last year, were expected to confess to the world in the Thursday night interview.  Winfrey said the 41-year-old Armstrong admitted taking illegal substances during the interview on Monday. The talkshow will be aired in two segments on Thursday and Friday night.