Novak Djokovic hits a return during the men's singles fourth round match between Novak Djokovic of Serbia and Alex de Minaur of Australia at the Wimbledon Tennis Championships in London, Britain, July 7, 2025. (Xinhua/Li Ying)

Novak Djokovic reacts during the men's singles fourth round match between Novak Djokovic of Serbia and Alex de Minaur of Australia at the Wimbledon Tennis Championships in London, Britain, July 7, 2025. (Xinhua/Li Ying)

Novak Djokovic reacts during the men's singles fourth round match between Novak Djokovic of Serbia and Alex de Minaur of Australia at the Wimbledon Tennis Championships in London, Britain, July 7, 2025. (Xinhua/Li Ying)

Alex de Minaur celebrates scoring during the men's singles fourth round match between Novak Djokovic of Serbia and Alex de Minaur of Australia at the Wimbledon Tennis Championships in London, Britain, July 7, 2025. (Xinhua/Li Ying)

Alex de Minaur serves during the men's singles fourth round match between Novak Djokovic of Serbia and Alex de Minaur of Australia at the Wimbledon Tennis Championships in London, Britain, July 7, 2025. (Xinhua/Li Ying)

Novak Djokovic reacts during the men's singles fourth round match between Novak Djokovic of Serbia and Alex de Minaur of Australia at the Wimbledon Tennis Championships in London, Britain, July 7, 2025. (Xinhua/Li Ying)

Novak Djokovic celebrates scoring during the men's singles fourth round match between Novak Djokovic of Serbia and Alex de Minaur of Australia at the Wimbledon Tennis Championships in London, Britain, July 7, 2025. (Xinhua/Li Ying)