Supporters use fans to beat the heat at the men's cross country mountain biking at the 2020 Summer Olympics, Monday, July 26, 2021, in Izu, Japan. (AP Photo/Christophe Ena)

Elise Mertens, of Belgium, rests a bag of ice on her neck during a tennis†match against Ekaterina Aleksandrova, of the Russian Olympic Committee, at the 2020 Summer Olympics, Sunday, July 25, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)

Roos Zwetsloot of the Netherlands walks from the course after a run in the women's street skateboarding finals at the 2020 Summer Olympics, Monday, July 26, 2021, in Tokyo, Japan. (AP Photo/Ben Curtis)

Aori Nishimura of Japan falls as he competes in the women's street skateboarding finals at the 2020 Summer Olympics, Monday, July 26, 2021, in Tokyo, Japan.(AP Photo/Ben Curtis)

France's Jeremy Flores surfs a wave during the third round of the men's surfing competition at the 2020 Summer Olympics, Monday, July 26, 2021, at Tsurigasaki beach in Ichinomiya, Japan. (AP Photo/Francisco Seco)

Dorian Coninx of France takes water as a volunteer holds out a bag of ice, during the run portion of the men's individual triathlon at the 2020 Summer Olympics, Monday, July 26, 2021, in Tokyo, Japan. (AP Photo/Jae C. Hong)

Argentina's Santiago Mare, center, takes off his sock as Marcos Moneta, left, and fellow teammates soak in ice baths following men's rugby sevens team practice in the midday heat at the Tokyo 2020 Olympics, in Tokyo, Friday, July 23, 2021. (AP Photo/David Goldman)