Boris Onishchenko Boris Onishchenko Boris Grigoryevich Onishchenko (Борис Григорьевич Онищенко; also transliterated as Onyshchenko, Onishenko, Onischenko; born 19 September 1937) is a former Soviet modern pentathlete who competed at the 1968, 1972 and 1976 Summer Olympics. He was a multiple Olympic and world champion, but was disqualified for cheating at the 1976 Summer Olympics and banned for life from sports. Having already earned his country an Olympic medal earlier in Mexico City and Munich, Onishchenko entered the event as a three-time world champion. After the first event of the pentathlon, the Soviet team found itself in fourth place, trailing closely behind Britain.
1999 Pan Arab Games Games that year. There were several doping incidents at the games. Morocco's Siham Hanifi, winner of the women's 100 metres, 200 metres and 4×100 metres relay events, was disqualified after a positive test for nandrolone (a steroid) – a fate also shared by her teammate Karima Shaheen, the discus throw bronze medallist. The bodybuilding contests were severely affected, with a six contestants being removed for taking banned substances. The Qatari weightlifting team was entirely disqualified after rival nations protested that a number of their representatives were from Bulgaria, Lebanon and Pakistan and did not have sufficient Qatari citizenship to compete.