Defending champion Naomi Osaka withdrew from the Pan Pacific Open ahead of her second round match on Thursday due to illness.
“I am very sorry that I will not be able to compete today,” Osaka said in a statement. “It is an honor to be able to play at the Pan Pacific Open in front of amazing fans in Japan. It has been and always will be a special tournament for me and I wish I could have stepped on the court but my body doesn’t allow me to do that. I’ll see you next year.”
Osaka did not speak about the illness before the tournament, saying he was healthy and fit. She was the previous 2019 Pan Pacific Champion and advanced to the second round this week when Daria Saville returned with a knee injury in her first-round matchup.
Fifth-seeded Brazilian Beatriz Haddad Mia benefited from Osaka’s return and will face fourth-seeded Veronica Kudermatova in the quarterfinals, who dominated Mexican Fernanda Contreras Gómez 6-0, 6-1.
There was no answer to Kudermetova’s clinical prowess as Contreras Gómez failed to show the level of play she had to beat 2020 Australian Open champion Sofia Kenin in the first round. Fourth-seeded Kudermetova made no mistake but Haddad Maiya has a major challenge to contend with.
In other matchups of the second round, Petra Martic defeated sixth seed Karolina Pliskova 6–3, 6–4, and in a matchup between unseeded players, Lyudmila Samsonova defeated the Chinese 7–6(5), 6 beat -3.
Martic will face China’s Zhang Shuai, Samsonova will face third seed Garbine Muguruza and American Claire Liu will face China’s Qinwen Zheng in Friday’s quarterfinals.