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.

World no. 4 Taylor Fritz ended his Canada Masters campaign in Toronto with the semi-final defeat to his compatriot, Ben Shelton, in straight sets. Taylor did not play well, facing too many break points and giving serve away three times.