Karen Khachanov of Russia returns the ball during the men's singles semifinal match between Alexander Zverev of Germany and Karen Khachanov of Russia at the 2025 National Bank Open tennis tournament in Toronto, Canada, on Aug. 6, 2025. (Photo by Zou Zheng/Xinhua)
Karen Khachanov of Russia celebrates scoring during the men's singles semifinal match between Alexander Zverev of Germany and Karen Khachanov of Russia at the 2025 National Bank Open tennis tournament in Toronto, Canada, on Aug. 6, 2025. (Photo by Zou Zheng/Xinhua)
Alexander Zverev of Germany reacts during the men's singles semifinal match between Alexander Zverev of Germany and Karen Khachanov of Russia at the 2025 National Bank Open tennis tournament in Toronto, Canada, on Aug. 6, 2025. (Photo by Zou Zheng/Xinhua)
Karen Khachanov of Russia returns the ball during the men's singles semifinal match between Alexander Zverev of Germany and Karen Khachanov of Russia at the 2025 National Bank Open tennis tournament in Toronto, Canada, on Aug. 6, 2025. (Photo by Zou Zheng/Xinhua)
Alexander Zverev of Germany returns the ball during the men's singles semifinal match between Alexander Zverev of Germany and Karen Khachanov of Russia at the 2025 National Bank Open tennis tournament in Toronto, Canada, on Aug. 6, 2025. (Photo by Zou Zheng/Xinhua)
Alexander Zverev of Germany serves during the men's singles semifinal match between Alexander Zverev of Germany and Karen Khachanov of Russia at the 2025 National Bank Open tennis tournament in Toronto, Canada, on Aug. 6, 2025. (Photo by Zou Zheng/Xinhua)
Alexander Zverev of Germany wipes off sweat during the men's singles semifinal match between Alexander Zverev of Germany and Karen Khachanov of Russia at the 2025 National Bank Open tennis tournament in Toronto, Canada, on Aug. 6, 2025. (Photo by Zou Zheng/Xinhua)
Karen Khachanov of Russia returns the ball during the men's singles semifinal match between Alexander Zverev of Germany and Karen Khachanov of Russia at the 2025 National Bank Open tennis tournament in Toronto, Canada, on Aug. 6, 2025. (Photo by Zou Zheng/Xinhua)
Karen Khachanov of Russia returns the ball during the men's singles semifinal match between Alexander Zverev of Germany and Karen Khachanov of Russia at the 2025 National Bank Open tennis tournament in Toronto, Canada, on Aug. 6, 2025. (Photo by Zou Zheng/Xinhua)
Karen Khachanov of Russia celebrates victory after the men's singles semifinal match between Alexander Zverev of Germany and Karen Khachanov of Russia at the 2025 National Bank Open tennis tournament in Toronto, Canada, on Aug. 6, 2025. (Photo by Zou Zheng/Xinhua)
