The bottom half of the men’s US Open draw turned into a free-for-all on Friday when No. 5 Marin Cilic and No. 10 John Isner were upset in Flushing Meadows.
Cilic was shocked by No. 29 seed Diego Schwartzman 4-6, 7-5, 7-5, 6-4, and Isner was left winless against both Zverev brothers this year (0-5), falling to Mischa 6-4, 6-3, 7-6(5).
“I didn’t do many mistakes,” Schwartzman said after taking out Cilic. “But then in the 5-4, it was just one break, and there it start the nerves in my body and was really tough the last game, but I can win and I am really happy.”
Cilic contributed a healthy 80 unforced errors.
Zverev had 34 winners to only seven unforced errors against Isner, who was treated for a neck issue during the match.
The German Zverev will next meet No. 17 Sam Querrey, who beat Radu Albot 4-6, 6-2, 6-4, 6-4.
Streaking Canadian Denis Shapovalov continued his run, advancing when Kyle Edmund retired with a neck/back injury trailing 3-6, 6-3, 6-3, 1-0 ret.
“He won the first set. He was playing good tennis,” Shapovalov said. “He was playing me the right way. Yeah, I picked it up in the second. Stayed calm after the first. I knew I would have my chances. I converted in the second set when I had the chance. So I was happy with that — it’s unfortunate what happened.”
The teen will next meet No. 12 seed Pablo Carreno Busta, who beat veteran qualifier Nicholas Mahut 6-3, 6-4, 6-3.
Other fourth-round matches set up Friday will be No. 16 Lucas Pouille, who beat Mikhail Kukushkin 2-6, 6-3, 6-4, 6-4, against Schwartzman, and No. 28 Kevin Anderson, who powered past Borna Coric 6-4, 6-3, 6-2, against Paolo Lorenzi who beat fellow Italian Thomas Fabbiano 6-2, 6-4, 6-4.
Highlights Saturday at the US Open include (1) Rafael Nadal vs. Leo Mayer, (3) Roger Federer vs. (31) Feliciano Lopez, (9) David Goffin vs. (18) Gael Monfils, and (11) Roberto Bautista Agut vs. (24) Juan Martin del Potro.
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