Ambesse Tolosa
Ambesse Tolosa is an Ethiopian Long-distance [track event|long-distance] runner, who specializes in the marathon race.
Tolosa tested positive for Use of [performance-enhancing drugs in sport|banned substances] in February 2008 and received a two-year ban from competitive athletics. The substance that was present in his system was not a performance-enhancing drug and Tolosa said that he did not know how it had gotten into his body, but the IAAF rules stated that athletes received bans regardless of intent. His results from 9 December 2007 onwards were annulled, which included his win at the Honolulu Marathon that year.