Serbia's Novak Djokovic serves during a training session ahead of the Davis Cup World Group tennis match between Serbia and Greece in Belgrade, Serbia on Sept. 11, 2024. (Photo by Predrag Milosavljevic/Xinhua)
Serbia's Novak Djokovic hits a return during a training session ahead of the Davis Cup World Group tennis match between Serbia and Greece in Belgrade, Serbia on Sept. 11, 2024. (Photo by Predrag Milosavljevic/Xinhua)
Serbia's Novak Djokovic serves during a training session ahead of the Davis Cup World Group tennis match between Serbia and Greece in Belgrade, Serbia on Sept. 11, 2024. (Photo by Predrag Milosavljevic/Xinhua)
Serbia's Novak Djokovic reacts during a training session ahead of the Davis Cup World Group tennis match between Serbia and Greece in Belgrade, Serbia on Sept. 11, 2024. (Photo by Predrag Milosavljevic/Xinhua)
Serbia's Novak Djokovic hits a return during a training session ahead of the Davis Cup World Group tennis match between Serbia and Greece in Belgrade, Serbia on Sept. 11, 2024. (Photo by Predrag Milosavljevic/Xinhua)
