Serbia's Novak Djokovic reacts during the men's singles semifinal tennis match against Russia's Karen Khachanov at Serbia Open ATP 250 series tournament in Belgrade, Serbia on April 23, 2022. (Photo by Predrag Milosavljevic/Xinhua)
Russia's Karen Khachanov returns the ball during the men's singles semifinal tennis match against Serbia's Novak Djokovic at Serbia Open ATP 250 series tournament in Belgrade, Serbia on April 23, 2022. (Photo by Predrag Milosavljevic/Xinhua)
Serbia's Novak Djokovic returns the ball during the men's singles semifinal tennis match against Russia's Karen Khachanov at Serbia Open ATP 250 series tournament in Belgrade, Serbia on April 23, 2022. (Photo by Predrag Milosavljevic/Xinhua)
Serbia's Novak Djokovic returns the ball during the men's singles semifinal tennis match against Russia's Karen Khachanov at Serbia Open ATP 250 series tournament in Belgrade, Serbia on April 23, 2022. (Photo by Predrag Milosavljevic/Xinhua)