USA's Frances Tiafoe serves to Japan's Kei Nishikori during their men's singles tennis match at the ATP Tour Japan Open Tennis Championships at the Ariake Tennis Forest Park in Tokyo on October 1, 2026. (Photo by Rie KIKUCHI / AFP via Getty Images)

Japan's Kei Nishikori serves to USA's Frances Tiafoe during their men's singles tennis match at the ATP Tour Japan Open Tennis Championships at the Ariake Tennis Forest Park in Tokyo on October 1, 2026. (Photo by Rie KIKUCHI / AFP via Getty Images)

BEIJING, CHINA - OCTOBER 01: Qinwen Zheng of China serves against Han Shi of China during the Women's Singles first round match on Day 2 of the China Open at National Tennis Center on October 01, 2026 in Beijing, China. (Photo by Yanshan Zhang/Getty Images)

BEIJING, CHINA - OCTOBER 01: Qinwen Zheng of China serves against Han Shi of China during the Women's Singles first round match on Day 2 of the China Open at National Tennis Center on October 01, 2026 in Beijing, China. (Photo by Yanshan Zhang/Getty Images)

BEIJING, CHINA - OCTOBER 01: Qinwen Zheng of China serves against Han Shi of China during the Women's Singles first round match on Day 2 of the China Open at National Tennis Center on October 01, 2026 in Beijing, China. (Photo by Yanshan Zhang/Getty Images)

BEIJING, CHINA - OCTOBER 01: Qinwen Zheng of China serves against Han Shi of China during the Women's Singles first round match on Day 2 of the China Open at National Tennis Center on October 01, 2026 in Beijing, China. (Photo by Yanshan Zhang/Getty Images)

BEIJING, CHINA - OCTOBER 01: Qinwen Zheng of China serves against Han Shi of China during the Women's Singles first round match on Day 2 of the China Open at National Tennis Center on October 01, 2026 in Beijing, China. (Photo by Yanshan Zhang/Getty Images)

BEIJING, CHINA - OCTOBER 01: Qinwen Zheng of China plays a backhand against Han Shi of China during the Women's Singles first round match on Day 2 of the China Open at National Tennis Center on October 01, 2026 in Beijing, China. (Photo by Yanshan Zhang/Getty Images)