Moriyasu added that a 3-2 comeback win over the Brazilians in Tokyo last October to notch their first-ever victory against the five-time champions showed Japan will go into the match on Monday looking to do more than put up a good fight.
"Last time we proved to Brazil that we aren’t a pushover," Moriyasu said. "That is great progress for us. The Brazilian team is a top team in the world, and we greatly respect them.
"In the match, we don’t know what is going to happen. We will have a chance to win as well."
Japan booked their date with Brazil after drawing 1-1 with Sweden on Thursday in Dallas as Daizen Maeda opened the scoring before Moriyasu's side conceded minutes later.
The result earned Japan second place in the group behind the Netherlands.
Moriyasu said he was disappointed to concede, but once the game was level, he elected to bring on defensive players to preserve the point and notch second place in the group.
"We conceded a goal, and in the world of football, that is how it goes," he said.
Japan's result is also good for Asian football, Moriyasu said, adding that his side were representing the sporting ambition of the broader region, while advancing to the knockout rounds shows the growth of football in his country.
"That is what we wanted to do from the beginning of the competition, and this is proof in the growth of Japanese football," he said.
FIFA World Cup 2026
The 2026 World Cup is taking place from June 11th to July 19th in the United States, Canada and Mexico. The tournament features 48 national teams and is played at 16 modern stadiums.
Match schedule and times | Group tables | How to watch the World Cup | World Cup Format | Past winners of the World Cup