Summer Olympic Games federal government; the country's economic crisis; health and safety concerns surrounding the Zika virus and significant pollution in the Guanabara Bay; and a state-sponsored doping scandal involving Russia, which affected the participation of its athletes in the Games. Tokyo, Japan will host the 2020 Summer Olympics, making it the first Asian city to host the Olympic Games twice. Forty-two sports, spanning 55 disciplines, have been part of the Olympic program at one point or another. Twenty-eight sports have comprised the schedule for three of the recent games, 2000, 2004, and 2008 Summer Olympics. Due to the removal of baseball and
Summer Olympic Games II, the Games of 1940 (due to be held in Tokyo and temporarily relocated to Helsinki upon the outbreak of war) were cancelled. The Games of 1944 were due to be held in London but were also cancelled; instead, London hosted the first games after the end of the war, in 1948. The first post-war Games were held in 1948 in London, with both Germany and Japan excluded. Dutch sprinter Fanny Blankers-Koen won four gold medals on the track, emulating Owens' achievement in Berlin. At the 1952 Games in Helsinki the USSR team competed for the first time and immediately