Djokovic beats Sousa 3-0 in U.S. Open men's singles 4th round

 

Novak Djokovic of Serbia hits a return during the men's singles fourth round match against Joao Sousa of Portugal at the 2018 US Open in New York, the United States, Sept. 3, 2018. Djokovic won 3-0. (Xinhua/Li Muzi)