Sebastian Ofner of Austria returns the ball to Mackenzie McDonald of the United States during the men's singles round of 32 match at Hong Kong Open 2024 tennis tournament in Hong Kong, South China, Jan. 2, 2024. (Xinhua/Lo Ping Fai)
Mackenzie McDonald of the United States returns the ball to Sebastian Ofner of Austria during the men's singles round of 32 match at Hong Kong Open 2024 tennis tournament in Hong Kong, South China, Jan. 2, 2024. (Xinhua/Lo Ping Fai)
Sebastian Ofner of Austria serves to Mackenzie McDonald of the United States during the men's singles round of 32 match at Hong Kong Open 2024 tennis tournament in Hong Kong, South China, Jan. 2, 2024. (Xinhua/Lo Ping Fai)
Mackenzie McDonald of the United States returns the ball to Sebastian Ofner of Austria during the men's singles round of 32 match at Hong Kong Open 2024 tennis tournament in Hong Kong, South China, Jan. 2, 2024. (Xinhua/Lo Ping Fai)
Jan-Lennard Struff of Germany returns the ball to Marin Cilic of Croatia during the men's singles round of 32 match at Hong Kong Open 2024 tennis tournament in Hong Kong, South China, Jan. 2, 2024. (Xinhua/Lo Ping Fai)
Marin Cilic of Croatia returns the ball to Jan-Lennard Struff of Germany during the men's singles round of 32 match at Hong Kong Open 2024 tennis tournament in Hong Kong, South China, Jan. 2, 2024. (Xinhua/Lo Ping Fai)
Jan-Lennard Struff of Germany returns the ball to Marin Cilic of Croatia during the men's singles round of 32 match at Hong Kong Open 2024 tennis tournament in Hong Kong, South China, Jan. 2, 2024. (Xinhua/Lo Ping Fai)
