Chinese Olympic snowboarder Liu Jiayu trains at the UFC Performance Institute in Shanghai, China September 10, 2021. Picture taken September 10, 2021. REUTERS/Aly Song

Chinese Olympic snowboarder Liu Jiayu trains at the UFC Performance Institute in Shanghai, China September 10, 2021. Picture taken September 10, 2021. REUTERS/Aly Song

Chinese Olympic snowboarder Liu Jiayu trains with trainer Felix Falkenberg at the UFC Performance Institute in Shanghai, China September 10, 2021. Picture taken September 10, 2021. REUTERS/Aly Song

Chinese Olympic snowboarder Liu Jiayu trains with trainer Felix Falkenberg at the UFC Performance Institute in Shanghai, China September 10, 2021. Picture taken September 10, 2021. REUTERS/Aly Song

Chinese Olympic snowboarder Liu Jiayu trains at the UFC Performance Institute in Shanghai, China September 10, 2021. Picture taken September 10, 2021. REUTERS/Aly Song

Chinese Olympic snowboarder Liu Jiayu trains with a trainer at the UFC Performance Institute in Shanghai, China September 10, 2021. Picture taken September 10, 2021. REUTERS/Aly Song

Chinese Olympic snowboarder Cai Xuetong (R) and Liu Jiayu train with trainer Felix Falkenberg at the UFC Performance Institute in Shanghai, China September 10, 2021. Picture taken September 10, 2021. REUTERS/Aly Song

Chinese Olympic snowboarder Cai Xuetong trains with trainer Felix Falkenberg at the UFC Performance Institute in Shanghai, China September 10, 2021. Picture taken September 10, 2021. REUTERS/Aly Song

Chinese Olympic snowboarders Cai Xuetong (L) and Liu Jiayu train with trainer Felix Falkenberg at the UFC Performance Institute in Shanghai, China September 10, 2021. Picture taken September 10, 2021. REUTERS/Aly Song

Chinese Olympic snowboarder Cai Xuetong poses for a photo at the UFC Performance Institute in Shanghai, China September 10, 2021. Picture taken September 10, 2021. REUTERS/Aly Song

Chinese Olympic snowboarder Cai Xuetong (L) and Liu Jiayu train with trainer Felix Falkenberg at the UFC Performance Institute in Shanghai, China September 10, 2021. Picture taken September 10, 2021. REUTERS/Aly Song

Chinese Olympic snowboarder Liu Jiayu trains at the UFC Performance Institute in Shanghai, China September 10, 2021. Picture taken September 10, 2021. REUTERS/Aly Song

Chinese Olympic snowboarder Cai Xuetong trains with trainer Felix Falkenberg at the UFC Performance Institute in Shanghai, China September 10, 2021. Picture taken September 10, 2021. REUTERS/Aly Song

Chinese Olympic snowboarder Cai Xuetong trains with trainer Felix Falkenberg at the UFC Performance Institute in Shanghai, China September 10, 2021. Picture taken September 10, 2021. REUTERS/Aly Song

Chinese Olympic snowboarder Liu Jiayu trains with trainer Felix Falkenberg at the UFC Performance Institute in Shanghai, China September 10, 2021. Picture taken September 10, 2021. REUTERS/Aly Song

Chinese Olympic snowboarder Cai Xuetong trains at the UFC Performance Institute in Shanghai, China September 10, 2021. Picture taken September 10, 2021. REUTERS/Aly Song

Chinese Olympic snowboarder Cai Xuetong trains at the UFC Performance Institute in Shanghai, China September 10, 2021. Picture taken September 10, 2021. REUTERS/Aly Song

People carry snowboards at Kapoko Snow Park at Afriski Mountain Resort in Butha Buthe, Lesotho, July 31, 2021. Picture taken July 31, 2021. REUTERS/Sumaya Hisham

People ski and snowboard at Kapoko Snow Park at Afriski Mountain Resort in Butha Buthe, Lesotho, July 31, 2021. Picture taken July, 31, 2021. REUTERS/Sumaya Hisham

Hope Ramokotjo snowboards at Kapoko Snow Park at Afriski Mountain Resort in Butha Buthe, Lesotho, July 31, 2021. Picture taken July 31, 2021. REUTERS/Sumaya Hisham

Hope Ramokotjo snowboards at Kapoko Snow Park at Afriski Mountain Resort in Butha Buthe, Lesotho, July 31, 2021. Picture taken July 31, 2021. REUTERS/Sumaya Hisham

Staff members from the Beijing 2022 Winter Olympic Games organising committee and journalist ride a cable car at Zhangjiakou Genting Snow Park, a competition venue for snowboard and freestyle skiing, during an organised media tour to venues of the 2022 Beijing Winter Olympic Games in Zhangjiakou, Hebei province, China July 14, 2021. Picture taken July 14, 2021. REUTERS/Tingshu Wang

A worker works on the grass at Zhangjiakou Genting Snow Park, a competition venue for snowboard and freestyle skiing, during an organised media tour to venues of the Beijing 2022 Winter Olympic Games in Zhangjiakou, Hebei province, China July 14, 2021. Picture taken July 14, 2021. REUTERS/Tingshu Wang

A staff member from the Beijing 2022 Winter Olympic Games organising committee speaks to the journalists at Zhangjiakou Genting Snow Park, a competition venue for snowboard and freestyle skiing, during an organised media tour in Zhangjiakou, Hebei province, China July 14, 2021. Picture taken July 14, 2021. REUTERS/Tingshu Wang

Zhangjiakou Genting Snow Park, a competition venue for snowboard and freestyle skiing, is seen during an organised media tour to venues of the Beijing 2022 Winter Olympic Games in Zhangjiakou, Hebei province, China July 14, 2021. Picture taken July 14, 2021. REUTERS/Tingshu Wang

Cable cars are seen at Zhangjiakou Genting Snow Park, a competition venue for snowboard and freestyle skiing, during an organised media tour to venues of the Beijing 2022 Winter Olympic Games, in Zhangjiakou, Hebei province, China July 14, 2021. Picture taken July 14, 2021. REUTERS/Tingshu Wang

Journalists look at images of snow slopes at Zhangjiakou Genting Snow Park, a competition venue for snowboard and freestyle skiing, during an organised media tour to venues of the Beijing 2022 Winter Olympic Games in Zhangjiakou, Hebei province, China July 14, 2021. Picture taken July 14, 2021. REUTERS/Tingshu Wang

A snowboarder takes a turn during the outbreak of the coronavirus disease (COVID-19) on the slopes of the ski resort of Lenzerheide, Switzerland, March 19, 2021. REUTERS/Denis Balibouse

Snowboarding - FIS Snowboard Alpine World Championship - Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Men's gold medalist, Austria's Benjamin Karl celebrates with Women's gold medalist, Russia's Sofia Nadyrshina after winning the Parallel Giant Slalom REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Men's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Austria's Benjamin Karl celebrates after winning gold in the Men's Parallel Giant Slalom on the podium REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Men's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Austria's Andreas Prommegger celebrates after winning silver in the Men's Parallel Giant Slalom on the podium REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Men's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Austria's Andreas Prommegger celebrates after winning silver in the Men's Parallel Giant Slalom on the podium REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Men's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Austria's Andreas Prommegger celebrates after winning silver in the Men's Parallel Giant Slalom on the podium REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Men's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Russia's Dmitry Loginov celebrates winning bronze in the Men's Parallel Giant Slalom on the podium REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Men's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Russia's Dmitry Loginov celebrates winning bronze in the Men's Parallel Giant Slalom on the podium REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Men's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Austria's Benjamin Karl celebrates after winning gold with second placed, Austria's Andreas Prommegger and third placed, Russia's Dmitry Loginov in the Men's Parallel Giant Slalom on the podium REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Men's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Austria's Benjamin Karl celebrates after winning gold in the Men's Parallel Giant Slalom on the podium REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Men's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Austria's Benjamin Karl celebrates after winning gold in the Men's Parallel Giant Slalom on the podium REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Men's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Austria's Benjamin Karl celebrates after winning gold in the Men's Parallel Giant Slalom on the podium REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Men's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Austria's Benjamin Karl celebrates after winning gold in the Men's Parallel Giant Slalom on the podium REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Women's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Germany's Ramona Theresia Hofmeister and Selina Jorg celebrate after finishing in second and third place respectively REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Women's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Germany's Ramona Theresia Hofmeister and Selina Jorg celebrate after finishing in second and third place respectively REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Women's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Russia's Sofia Nadyrshina celebrates after winning gold in the Women's Parallel Giant Slalom on the podium REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Women's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Germany's Selina Jorg celebrates after winning bronze in the Women's Parallel Giant Slalom on the podium REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Women's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Germany's Selina Jorg celebrates after winning bronze in the Women's Parallel Giant Slalom on the podium REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Women's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Germany's Selina Jorg celebrates after winning bronze in the Women's Parallel Giant Slalom on the podium REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Women's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Germany's Ramona Theresia Hofmeister celebrates after winning silver in the Women's Parallel Giant Slalom on the podium REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Women's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Germany's Ramona Theresia Hofmeister celebrates after winning silver in the Women's Parallel Giant Slalom on the podium REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Women's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Germany's Ramona Theresia Hofmeister celebrates after winning silver in the Women's Parallel Giant Slalom on the podium REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Women's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Russia's Sofia Nadyrshina celebrates after winning gold in the Women's Parallel Giant Slalom on the podium REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Women's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Russia's Sofia Nadyrshina celebrates after winning gold in the Women's Parallel Giant Slalom on the podium REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Women's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Russia's Sofia Nadyrshina celebrates after winning gold in the Women's Parallel Giant Slalom on the podium REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Men's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Austria's Benjamin Karl celebrates after finishing in first place REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Men's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Austria's Benjamin Karl celebrates after finishing in first place REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Men's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Austria's Benjamin Karl celebrates after finishing in first place REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Men's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Austria's Benjamin Karl celebrates after finishing in first place REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Men's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Austria's Benjamin Karl celebrates after finishing in first place REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Men's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Austria's Benjamin Karl celebrates after finishing in first place REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Men's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Russia's Dmitry Loginov reacts after finishing in third place REUTERS/Borut Zivulovic

Snowboarding - FIS Snowboard Alpine World Championship - Men's Parallel Giant Slalom - Rogla, Slovenia - March 2, 2021 Russia's Dmitry Loginov reacts after finishing in third place REUTERS/Borut Zivulovic