Karsten Moran for The New York Times
When tennis players claim they don’t look at the draw sheet of a tournament, it is often a cover. They just want to avoid talking about possible future opponents.
Other times they genuinely don’t want to know what lies ahead, preferring instead to focus on only the one match in front of them. And sometimes, they just have it wrong.
Consider Diego Schwartzman, the hard-charging player from Argentina, who upset No. 6 Alexander Zverev, 3-6, 6-2, 6-4, 6-3, on Monday to reach the United States Open quarterfinals for the second time.