Serbia's Novak Djokovic hits a return to China's Bu Yunchaokete 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)

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

Serbia's Novak Djokovic receives medical attention during his men's singles match against China's Bu Yunchaokete at the China Open tennis tournament in Beijing on October 2, 2026. (Photo by Pedro PARDO / AFP via Getty Images)

Serbia's Novak Djokovic receives medical attention during his men's singles match against China's Bu Yunchaokete at the China Open tennis tournament in Beijing on October 2, 2026. (Photo by Pedro PARDO / AFP via Getty Images)

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

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

Serbia's Novak Djokovic hits a return to China's Bu Yunchaokete 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)

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)