Athletes are seen with fireworks during the opening ceremony at the Olympic Stadium at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo. (AP Photo/Morry Gash)

Dancers perform during the opening ceremony in the Olympic Stadium at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo, Japan. (AP Photo/Charlie Riedel)

The Olympic flag is raised during the opening ceremony in the Olympic Stadium at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo, Japan. (AP Photo/Kirsty Wigglesworth)

A member from Team Mexico arrives during the opening ceremony in the Olympic Stadium at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo, Japan. (Hannah McKay/Pool Photo via AP)

First lady of the United States Jill Biden waves during the opening ceremony in the Olympic Stadium at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo, Japan. (Dylan Martinez/Pool Photo via AP)

Drones fly over the National Stadium during the opening ceremony of 2020 Tokyo Olympics is seen from Shibuya Sky observation deck Friday, July 23, 2021, in Tokyo, Japan. (AP Photo/Eugene Hoshiko)

Fireworks illuminate over National Stadium during the opening ceremony of the 2020 Tokyo Olympics, Friday, July 23, 2021, in Tokyo. (AP Photo/Kiichiro Sato)

Dancers perform during the opening ceremony in the Olympic Stadium at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo, Japan. (AP Photo/Lee Jin-man)

U.S. Prince Albert II of Monaco watches during the opening ceremony in the Olympic Stadium at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo, Japan. (Dylan Martinez/Pool Photo via AP)

Naomi Osaka lights the Olympic flame during the opening ceremony in the Olympic Stadium at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo, Japan. (AP Photo/David J. Phillip)

The Olympic flame burns during the opening ceremony in the Olympic Stadium at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo, Japan. (AP Photo/Lee Jin-man)

Cecilia Carranza Saroli and Santiago Raul Lange, of Argentina, right, carry their country's flag during the opening ceremony in the Olympic Stadium at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)

Sue Bird and Eddy Alvares, of the United States of America, carry their country's flag during the opening ceremony at the Olympic Stadium at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo. (AP Photo/Morry Gash)

Naomi Osaka lights the Olympic cauldron during the opening ceremony at the Olympic Stadium at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo. (AP Photo/Morry Gash)

Hiromi performs during the opening ceremony in the Olympic Stadium at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo, Japan. (AP Photo/Petr David Josek)

Pita Taufatofua, of Tonga, walks during the opening ceremony in the Olympic Stadium at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo, Japan. (AP Photo/David J. Phillip)

Fireworks light up the sky during the opening ceremony in the Olympic Stadium at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo, Japan. (Hannah McKay/Pool Photo via AP)

President of the IOC Thomas Bach, left, and Japan's Emperor Naruhito wave during the opening ceremony in the Olympic Stadium at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo, Japan. (AP Photo/Natacha Pisarenko)

A security officer looks out over an empty stadium before the opening ceremony in the Olympic Stadium at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo, Japan. (AP Photo/David J. Phillip)

Athletes from Japan walk during the opening ceremony in the Olympic Stadium at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo, Japan. (AP Photo/David J. Phillip)