Mongolia's Orkhon Purevdorj, red, competes against Russia's Valeriia Koblova Zholobova during the women's 58-kg freestyle wrestling competition at the 2016 Summer Olympics in Rio de Janeiro, Brazil, Wednesday, August 17, 2016. (Photo by Markus Schreiber/AP Photo)





United States' Tianna Bartoletta in action during the women's long jump final, during the athletics competitions of the 2016 Summer Olympics at the Olympic stadium in Rio de Janeiro, Brazil, Wednesday, August 17, 2016. (Photo by Matt Dunham/AP Photo)





Brazil's Arthur Zanetti performs on the rings during the men's gymnastics exhibition. August 17, 2016. (Photo by Dmitri Lovetsky/AP Photo)





2016 Rio Olympics, Athletics, Victory Ceremony, Women's 400m Victory Ceremony, Olympic Stadium, Rio de Janeiro, Brazil on August 16, 2016. Gold medalist Shaunae Miller (BAH) of Bahamas reacts. (Photo by Sergio Moraes/Reuters)





2016 Rio Olympics, Athletics, Final, Women's 1500m Final, Olympic Stadium, Rio de Janeiro, Brazil on August 16, 2016. Jenny Simpson (USA) of USA celebrates after winning bronze. (Photo by Dylan Martinez/Reuters)





Laura Auge and Margaux Chretien of France compete in the Synchronised Swimming Duets Free Routine final on Day 11 of the Rio 2016 Olympic Games at the Maria Lenk Aquatics Centre on August 16, 2016 in Rio de Janeiro, Brazil. (Photo by Adam Pretty/Getty Images)





2016 Rio Olympics, Athletics, Final, Women's 1500m Final, Olympic Stadium, Rio de Janeiro, Brazil on August 16, 2016. Faith Chepngetich Kipyegon (KEN) of Kenya reacts on track after winning the final. (Photo by David Gray/Reuters)





2016 Rio Olympics, Athletics, Preliminary, Women's Long Jump Qualifying Round, Groups, Olympic Stadium, Rio de Janeiro, Brazil on August 16, 2016. Darya Klishina (RUS) of Russia competes. (Photo by Phil Noble/Reuters)





2016 Rio Olympics, Wrestling, Preliminary, Women's Freestyle 58 kg Qualification, Carioca Arena 2, Rio de Janeiro, Brazil on August 17, 2016. Mimi Hristova (BUL) of Bulgaria and Orkhon Purevdorj (MGL) of Mongolia compete. (Photo by Toru Hanai/Reuters)





2016 Rio Olympics, Hockey, Semifinal, Women's Semifinal Match New Zealand vs Britain, Olympic Hockey Centre, Rio de Janeiro, Brazil on August 17, 2016. Rose Keddell (NZL) of New Zealand (L) stumbles over Crista Cullen (GBR) of Britain. (Photo by Vasily Fedosenko/Reuters)





2016 Rio Olympics, Wrestling, Final, Women's Freestyle 58 kg Bronze, Carioca Arena 2, Rio de Janeiro, Brazil on August 17, 2016. The referee raises the hand of Maroua Amri (TUN) of Tunisia after her victory over Yulia Ratkevich (AZE) of Azerbaijan. (Photo by Ruben Sprich/Reuters)





Brianna Rollins from the United States celebrates after winning the gold medal in the women's 100-meter hurdles final during the athletics competitions of the 2016 Summer Olympics at the Olympic stadium in Rio de Janeiro, Brazil, Wednesday, August 17, 2016. (Photo by Matt Slocum/AP Photo)





Christian Ahlmann of Germany riding Taloubet Z performs during the Jumping Individual 3rd qualifier competition of the Rio 2016 Olympic Games Equestrian events at the Olympic Equestrian Centre in Rio de Janeiro, Brazil, 17 August 2016. (Photo by Armando Babani/EPA)





Agatha Bednarczuk Rippel of Brazil and Barbara Seixas de Freitas of Brazil wave to the crowd before the Beach Volleyball Women's Gold medal match against Laura Ludwig of Germany and Kira Walkenhorst of Germany on day 12 of the Rio 2016 Olympic Games at the Beach Volleyball Arena on August 17, 2016 in Rio de Janeiro, Brazil. (Photo by Ezra Shaw/Getty Images)





USA's Ashton Eaton competes in the Men's Decathlon Long Jump during the athletics event at the Rio 2016 Olympic Games at the Olympic Stadium in Rio de Janeiro on August 17, 2016. (Photo by Adrian Dennis/AFP Photo)





Japan's Eri Tosaka celebrates with her coach winning against Azerbaijan's Mariya Stadnyk in their women's 48kg freestyle final match on August 17, 2016, during the wrestling event of the Rio 2016 Olympic Games at the Carioca Arena 2 in Rio de Janeiro. (Photo by Jack Guez/AFP Photo)





France's Philippe Rozier riding Rahotep de Toscane takes part in the jumping competition at the Olympic Equestrian Centre during the Rio 2016 Olympic Games in Rio de Janeiro on August 17, 2016. (Photo by Philippe Lopez/AFP Photo)





Brianna Rollins from the United States, center left, celebrates winning the gold medal in the women's 100-meter hurdles final with second placed United States' Nia Ali, center right, during the athletics competitions of the 2016 Summer Olympics at the Olympic stadium in Rio de Janeiro, Brazil, Wednesday, August 17, 2016. (Photo by David J. Phillip/AP Photo)





Second placed Netherlands' Dafne Schippers lies on the ground after falling over the finish line as Elaine Thompson from Jamaica, left, wins the gold in the women's 200-meter final during the athletics competitions of the 2016 Summer Olympics at the Olympic stadium in Rio de Janeiro, Brazil, Wednesday, August 17, 2016. (Photo by David J. Phillip/AP Photo)





Sweden's Anna Jenny Fransson, left, celebrates after beating Canada's Dorothy Erzsebet Yeats in the women's wrestling freestyle 69-kg competition bronze medal round at the 2016 Summer Olympics in Rio de Janeiro, Brazil, Wednesday, August 17, 2016. (Photo by Markus Schreiber/AP Photo)





United States' Danell Leyva prepares for his performance on the parallel bars during the gymnastics exhibition gala at the 2016 Summer Olympics in Rio de Janeiro, Brazil, Wednesday, August 17, 2016. (Photo by Dmitri Lovetsky/AP Photo)





Colombian fans watch as Mariana Pajon of Colombia, background, competes in the women's seeding run at the Olympic BMX Center during the 2016 Summer Olympics in Rio de Janeiro, Brazil, Wednesday, August 17, 2016. (Photo by Pavel Golovkin/AP Photo)





Netherlands' Sanne Wevers performs on the balance beam during the gymnastics exhibition gala at the 2016 Summer Olympics in Rio de Janeiro, Brazil, Wednesday, August 17, 2016. (Photo by Dmitri Lovetsky/AP Photo)





A dancer performs during the Gymnastics Rio Gala on Day 12 of the 2016 Rio Olympic Games on August 17, 2016 in Rio de Janeiro, Brazil. (Photo by Clive Brunskill/Getty Images)