Ons Jabeur extended her career-best run at Flushing Meadows by beating Veronika Kudermetova 7-6 (1), 6-4 to reach the quarterfinals.
The No. 5-seeded Jabeur was the runner-up at Wimbledon in July and now is into the quarterfinals at a major tournament for the fourth time.
Jabeur will face unseeded Ajla Tomljanovic for a semifinal berth. Tomljanovic eliminated 23-time Grand Slam champion Serena Williams in the third round on Friday, then beat Liudmila Samsonova on Sunday.
