Yamashita has worked games in Japan’s men’s league, and has also been in charge of the Asian equivalent of the men’s Champions League. She was also a referee at last year’s Tokyo Olympics.

Earlier this year, Mukansanga became the first woman to referee an Africa Cup of Nations match, leading an all-female officiating team. “As always, the criteria we have used is ‘quality first’ and the selected match officials represent the highest level of refereeing worldwide,” said FIFA referees committee chairman Pierluigi Collina, who worked the 2002 World Cup final.

“In this way, we clearly emphasize that it is quality that counts for us and not gender. “I would hope that in the future the selection of elite women’s match officials for important men’s competitions will be perceived as something normal and no longer as sensational.”

Yamashita has worked games in Japan’s men’s league, and has also been in charge of the Asian equivalent of the men’s Champions League. She was also a referee at last year’s Tokyo Olympics.

Earlier this year, Mukansanga became the first woman to referee an Africa Cup of Nations match, leading an all-female officiating team. “As always, the criteria we have used is ‘quality first’ and the selected match officials represent the highest level of refereeing worldwide,” said FIFA referees committee chairman Pierluigi Collina, who worked the 2002 World Cup final.

“In this way, we clearly emphasize that it is quality that counts for us and not gender. “I would hope that in the future the selection of elite women’s match officials for important men’s competitions will be perceived as something normal and no longer as sensational.”

Yamashita said the difference in the men’s and women’s game was, of course, speed. But not simply that some men might run faster. “It’s the speed, but not just the players’ speed,” she told the AP. “Not the ball speed. It’s just the game speed. It means for me I have to make quicker decisions — more speed.”

Then there’s the stress, the largest stage, and the attention she is certain to generate at the World Cup. “Of course, I think the pressure is huge,” she said, “and I think I have a lot of responsibility. But I am really happy to take this duty and pressure, so I try to take it positively and I try to be happy.”

Though it’s likely that all three will be in charge of games, it’s not a given. They could also be used as “fourth referees” on the sideline. However, they cannot be used as assistants. Like many referees, Yamashita said her job was to stay out of the way and let the game shine.

“One of the big goals as a referee is to bring out the the attractiveness of soccer,” she said. “I do my best for that, and I will do what I should at that time toward that end. So if I need to communicate with the players, I will do that. If I need to show a card, I will show a card. Rather than control, I’m thinking about what to do toward the big goal of bringing out the appeal of soccer.”

Yamashita conducted most of the interview with the AP in Japanese, but said she would use English and “facial gestures, body gestures” when communicating with players in Qatar. “Usually when I give a card, I say nothing,” she said, shifting to English. “But when I give a warning, I just tell them I’m not happy. They understand.”