Olympic Games ceremony their work during the Games. Next, two other national flags are hoisted on flagpoles one at a time while the corresponding national anthems are played: the flag of Greece to again honor the birthplace of the Olympic Games, and the flag of the country hosting the next Summer or Winter Olympic Games. In Moscow, Soviet Union, during the 1980 Summer Olympics boycott, the flag raised to represent the next games host was that of the City of Los Angeles instead of the flag of the boycotting United States. In Sydney and Athens, two Greek flags were raised because Greece was
Olympic Games detect banned substances. Several athletes were barred from competition by their National Olympic Committees prior to the Games; only three athletes failed drug tests while in competition in Beijing. In London over 6,000 Olympic and Paralympic athletes were tested. Prior to the Games 107 athletes tested positive for banned substances and were not allowed to compete. During and after the Games eight athletes tested positive for a banned substance and were suspended, including shot putter Nadzeya Ostapchuk, who was stripped of her gold medal. Russia was partially banned from the 2016 Summer Olympics and completely banned from the 2018 Winter