BEIJING, CHINA - OCTOBER 06: Karolina Muchova of Czech Republic sever against Naomi Osaka of Japan in the Women's singles fourth round match on day seven of China Open at the National Tennis Center on October 06, 2026 in Beijing, China. (Photo by Lintao Zhang/Getty Images)

BEIJING, CHINA - OCTOBER 06: Karolina Muchova of Czech Republic returns a shot against Naomi Osaka of Japan in the Women's singles fourth round match on day seven of China Open at the National Tennis Center on October 06, 2026 in Beijing, China. (Photo by Lintao Zhang/Getty Images)

BEIJING, CHINA - OCTOBER 06: Karolina Muchova of Czech Republic returns a shot against Naomi Osaka of Japan in the Women's singles fourth round match on day seven of China Open at the National Tennis Center on October 06, 2026 in Beijing, China. (Photo by Lintao Zhang/Getty Images)

BEIJING, CHINA - OCTOBER 06: Karolina Muchova of Czech Republic returns a shot against Naomi Osaka of Japan in the Women's singles fourth round match on day seven of China Open at the National Tennis Center on October 06, 2026 in Beijing, China. (Photo by Lintao Zhang/Getty Images)

BEIJING, CHINA - OCTOBER 06: Karolina Muchova of Czech Republic returns a shot against Naomi Osaka of Japan in the Women's singles fourth round match on day seven of China Open at the National Tennis Center on October 06, 2026 in Beijing, China. (Photo by Lintao Zhang/Getty Images)

BEIJING, CHINA - OCTOBER 06: Naomi Osaka of Japan returns a shot against Karolina Muchova of Czech Republic in the Women's singles fourth round match on day seven of China Open at the National Tennis Center on October 06, 2026 in Beijing, China. (Photo by Lintao Zhang/Getty Images)

BEIJING, CHINA - OCTOBER 06: Naomi Osaka of Japan sever against Karolina Muchova of Czech Republic in the Women's singles fourth round match on day seven of China Open at the National Tennis Center on October 06, 2026 in Beijing, China. (Photo by Lintao Zhang/Getty Images)

BEIJING, CHINA - OCTOBER 06: Naomi Osaka of Japan sever against Karolina Muchova of Czech Republic in the Women's singles fourth round match on day seven of China Open at the National Tennis Center on October 06, 2026 in Beijing, China. (Photo by Lintao Zhang/Getty Images)