Participants wearing protective face masks prepare for a compete at the Tokyo Olympics 3x3 basketball test event at Aomi Urban Sports Park in Tokyo, Japan. (Image: REUTERS)
Competitors prepare to compete at men's park event during the Tokyo Olympics skateboarding test event at Ariake Urban Sports Park in Tokyo, Japan. (Image: REUTERS/Issei Kato)
Ryo Kosone of Japan prepares for the men's Discus Throw competition during the Tokyo Paralympics athletics test event at Olympic Stadium (National Stadium) in Tokyo. (REUTERS/Issei Kato)
Officials wearing protective face masks prepare for an event at the morning session of the Athletics test event. (Image: REUTERS/Issei Kato)
An official is seen amid preparations before the start of the morning session of the Athletics test event. (Image: REUTERS/Issei Kato)
Event staff prepare the floor before the event (Image: REUTERS/Kim Kyung-Hoon)
Officials prepare before the start of the morning session of the Athletics test event. (Image: REUTERS/Issei Kato)
A ball person, wearing mask and gloves, prepares for the start of the Tokyo Olympics Rugby test event at Tokyo Stadium in Chofu, west of Tokyo, Japan. (Image: REUTERS/Kim Kyung-Hoon)
Arisa Tsubata, 27, a nurse and a boxer, is massaged by a chiropractor after a training session in Sayama, Saitama Prefecture, Japan. Tsubata has trained around her work shifts for over a year to prepare for a final Olympic boxing qualifier in the hope of making it to the Tokyo Games this summer. (Image: REUTERS)
Chilean athletes and staff travelling to Tokyo for the Olympics receive COVID-19 vaccine. A health care worker prepares a dose of the Pfizer-BioNTech vaccine against the coronavirus disease (COVID-19). (Image: REUTERS/Ivan Alvarado)