China's Bu Yunchaokete hits a return to Serbia's Novak Djokovic during their men's singles match at the China Open tennis tournament in Beijing on October 2, 2026. (Photo by Pedro PARDO / AFP via Getty Images)

BEIJING, CHINA - OCTOBER 02: Novak Djokovic of Serbia reacts during the Men's Singles second round match against Yunchaokete Bu of China on day three of China Open at the National Tennis Center on October 02, 2026 in Beijing, China. (Photo by Emmanuel Wong/Getty Images)

BEIJING, CHINA - OCTOBER 02: Novak Djokovic of Serbia reacts during the Men's Singles second round match against Yunchaokete Bu of China on day three of China Open at the National Tennis Center on October 02, 2026 in Beijing, China. (Photo by Emmanuel Wong/Getty Images)

BEIJING, CHINA - OCTOBER 02: Novak Djokovic of Serbia reacts during the Men's Singles second round match against Yunchaokete Bu of China on day three of China Open at the National Tennis Center on October 02, 2026 in Beijing, China. (Photo by Emmanuel Wong/Getty Images)

BEIJING, CHINA - OCTOBER 02: Novak Djokovic of Serbia reacts during the Men's Singles second round match against Yunchaokete Bu of China on day three of China Open at the National Tennis Center on October 02, 2026 in Beijing, China. (Photo by Emmanuel Wong/Getty Images)

BEIJING, CHINA - OCTOBER 02: Yunchaokete Bu of China reacts during the Men's Singles second round match against Novak Djokovic of Serbia on day three of China Open at the National Tennis Center on October 02, 2026 in Beijing, China. (Photo by Emmanuel Wong/Getty Images)

BEIJING, CHINA - OCTOBER 02: Yunchaokete Bu of China reacts during the Men's Singles second round match against Novak Djokovic of Serbia on day three of China Open at the National Tennis Center on October 02, 2026 in Beijing, China. (Photo by Emmanuel Wong/Getty Images)

BEIJING, CHINA - OCTOBER 02: Yunchaokete Bu of China returns a shot against Novak Djokovic of Serbia during the Men's Singles second round match on day three of China Open at the National Tennis Center on October 02, 2026 in Beijing, China. (Photo by Emmanuel Wong/Getty Images)