Japan's Miyu Kato (R) and her German partner Tim Puetz react after winning their mixed doubles quarterfinal at the French Open tennis tournament in Paris on June 5, 2023. (Kyodo)

PARIS - Japan's Miyu Kato said Monday she has lodged an appeal to the Grand Slam board against her women's doubles default at the French Open a day earlier for accidentally hitting a ball girl with a ball.