It is the baseball arena in Yokohama, which can take in 34,000 spectators, which will be the test site.
Right now, in Japan, it is allowed to fill the arenas half with an audience.
Japan's Finance Minister Yasutoshi Nishimura, who is leading the country's efforts to prevent infections, describes baseball matches as an experiment.
Then you should examine how it goes with the entry and exit and see how many people wear face masks.
It is the Yokohama arena that is the main arena in the baseball and softball tournament in the Olympics next summer.
It is the home arena for the baseball team Dena Bay Stars.
"I really hope that this will be a big step towards a successful Olympics," said Yuji Kuroiwa, governor of the Kanagawa region.