Hans-Gunnar Liljenwall
Hans-Gunnar Liljenwall (born 9 July 1941) is a former Swedish modern pentathlete who caused the disqualification of the Swedish team at the 1968 Summer Olympics for alcohol use. == Career == Liljenwall was the first athlete to be disqualified at the Olympics for drug use, following the introduction of anti-doping regulations by the International Olympic Committee in 1967.