Diego Schwartzman had a great day in the office on Friday. In the Vienna quarterfinals, he ousted No. 2 seed Karen Khachanov, 7-6 (6), 6-2, complete with an epic rally and drop-shot winner in the final game.

This week, Schwartzman has broken out of a slump that saw him go 1-3 after reaching the US Open quarterfinals. He'll play Gael Monfils on Saturday to earn a spot in his third final of 2019.

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WATCH: Schwartzman
upsets Khachanov
behind deft hot shot

WATCH: Schwartzman upsets Khachanov behind deft hot shot