Downhill bikers Kemal Mulic (R-L), Tarik Hadzic and Kamer Kolar train on the disused bobsled track from the 1984 Sarajevo Winter Olympics on Trebevic mountain near Sarajevo, Bosnia and Herzegovina, August 8, 2015. Abandoned and left to crumble into oblivion, most of the 1984 Winter Olympic venues in Bosnia's capital Sarajevo have been reduced to rubble by neglect as much as the 1990s conflict that tore apart the former Yugoslavia. (Photo by Dado Ruvic/Reuters)

Girls practice sit-ups during gymnastics lessons at the Shanghai Yangpu Youth Amateur Athletic School in Shanghai, China, on May 4, 2016. China's sports system has been enormously successful since the country returned to the Olympic fold in 1980, culminating with the host nation topping the medals' table at the 2008 Beijing Olympics. And yet, with the Rio de Janeiro Games less than three months away, the system is beginning to break down due to the shifting demographics of a more prosperous nation. (Photo by Aly Song/Reuters)

Russia's Darya Klishina prepares for the women's long jump qualification during the athletics competitions of the 2016 Summer Olympics at the Olympic stadium in Rio de Janeiro, Brazil, Tuesday, August 16, 2016. She might be feeling the pressure of being all alone, but Darya Klishina could yet still win Russia's only athletics medal at the Rio 2016 Games. (Photo by Matt Dunham/AP Photo)

The coendou porcupine couple 'Joppi' (L) and 'Fletcher' nibble at a vegetables in their enclosure at the zoo in Frankfurt am Main, Germany, 03 December 2015. Coendou porcupines are nocturnal rodents related to porcupines and guinea pigs and native to the rain forests of Central and South America as well as Trinidad. (Photo by Arne Dedert/EPA)

Dina Asher-Smith of Great Britain reacts after competing in the women's 200m during the Wanda Diamond League Golden Gala meeting. Dina Asher-Smith placed first. (Photo by Ciro De Luca/Reuters)

Children play a game as Myanmar celebrates its 72nd Independence Day in Yangon on January 4, 2020. The country is celebrating the 72nd anniversary of its declaration of independence from British colonial rule. (Photo by Sai Aung Main/AFP Photo)

A girl with a ritual garland headdress smiles during a traditional Midsummer Night celebration, in the capital Kyiv, Ukraine, Monday, July 6, 2020. Ukrainian girls believe the ages-old ceremony would help them to find their true love partners, as the pagan Slav festival is still celebrated in Ukraine, as Kyiv has lifted the coronavirus lockdown restrictions. (Photo by Efrem Lukatsky/AP Photo)

A model presents a creation by a Mexican designer during a catwalk show promoting diversity and inclusion to foster acceptance and removal of barriers that disabled people face in the country, in Mexico City, Mexico on October 26, 2022. (Photo by Quetzalli Nicte-Ha/Reuters)