Taylor Fritz was the headline casualty of an upset-filled day at the Dallas Open, as Frances Tiafoe and Ben Shelton also crashed out. (More Tennis News)
Fritz, the world number four who was the top seed in Texas, lost to Canada's Denis Shapovalov 2-6 6-3 7-6 (7-2).
It marked Shapovalov's first victory over an opponent ranked in the ATP's top 10 since he defeated Fritz to win the title in Vienna in 2022.
"It feels incredible. Taylor is a super tough opponent," said Shapovalov, via the ATP Tour's official website.
"He came out super solid and I came out a little sluggish.
"It was difficult. I'm definitely happy with my fight. I'm happy I was able to turn it around in the second set and I was able to keep that momentum going."
While Fritz will lick his wounds following a disappointing showing on the back of a third-round exit to Gael Monfils at the Australian Open, next up for바카라 웹사이트Shapovalov is Tomas Machac, who overcame바카라 웹사이트Rinky Hijikata in straight sets.
Shelton, who reached the Australian Open semi-finals last month, was another big name to fall short on Thursday.
The 22-year-old went down바카라 웹사이트6-2바카라 웹사이트7-6 (7-3) to Jaume Munar, who will take on바카라 웹사이트Matteo Arnaldi in the quarter-finals.
Another home hope, fifth seed Tiafoe, lost 6-3 4-6 6-3 to바카라 웹사이트Yoshihito Nishioka, whose reward is a last-eight tie with world number five Casper Ruud.
Third seed Tommy Paul did progress, overcoming바카라 웹사이트Ethan Quinn 6-4 5-7 6-4.
Paul squandered the chance to serve out the match in the second set, but wrestled back control of the tie in the decider.
"I've been in these situations a little bit more,"바카라 웹사이트Paul said. "I felt a little more comfortable. That's how you win the big matches, being better in the big moments."
Big-serving Reilly Opelka is Paul's quarter-final opponent.
Opelka struck 18 aces as he claimed a come-from-behind바카라 웹사이트4-6바카라 웹사이트7-6 (7-5)바카라 웹사이트6-4 win over바카라 웹사이트Cameron Norrie.
