Shelton, the rising 22-year-old American, made his first Masters 1000 final after beating his compatriot. Russia's Karen Khachanov is next.

Taylor Fritz and Ben Shelton won Tuesday in the quarterfinals of the National Bank Open, setting up the first all-American semifinal in an ATP Masters 1000 tournament in 15 years.

The Canadian Open saw mixed results for the Americans in Toronto and Montreal. Madison Keys was eliminated in the quarterfinals by Clara Tauson, leaving the women's draw without any Americans.