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
Cycling at the Youth Olympic Games Cycling at the Youth Olympic Games Cycling has been included in the Summer Youth Olympic Games since their inauguration at the 2010 Summer Youth Olympics, at which one event was held. Unlike the Summer Olympics, track cycling is not icluded, while the program features BMX racing, road cycling and mountain bike racing. At the 2010 Summer Youth Olympics a combined mixed-gender team event with sub-events in the disciplines of BMX, road cycling and mountain biking was held. At the 2014 Summer Youth Olympics instead of competitors competing separately they compete as a team. In the boys' and girls' team events