Marin Cilic of Croatia hits a return during the men's singles fourth round match against David Goffin of Belgium at the 2018 US Open in New York, the United States, Sept. 3, 2018. Cilic won 3-0. (Xinhua/Li Muzi)

Marin Cilic of Croatia celebrates during the men's singles fourth round match against David Goffin of Belgium at the 2018 US Open in New York, the United States, Sept. 3, 2018. Cilic won 3-0. (Xinhua/Li Muzi)

Marin Cilic of Croatia serves during the men's singles fourth round match against David Goffin of Belgium at the 2018 US Open in New York, the United States, Sept. 3, 2018. Cilic won 3-0. (Xinhua/Li Muzi)

David Goffin of Belgium hits a return during the men's singles fourth round match against Marin Cilic of Croatia at the 2018 US Open in New York, the United States, Sept. 3, 2018. Cilic won 3-0. (Xinhua/Li Muzi)

Marin Cilic of Croatia hits a return during the men's singles fourth round match against David Goffin of Belgium at the 2018 US Open in New York, the United States, Sept. 3, 2018. Cilic won 3-0. (Xinhua/Li Muzi)