Bianca Andreescu tumbled out of the National Bank Open hours after fellow Canadian Rebecca Marino's surprising run ended. (More Sports News)
Ons Jabeur of Tunisia beat the second-seeded Andreescu 6-7 (5), 6-4, 6-1 in a match interrupted by rain for about an hour in the middle of the second set.
“I told her she better win now,” Andreescu said.
The 13th-seeded Jabeur will face the winner of the late match between Americans Danielle Collins and Jessica Pegula.
In June in Birmingham, England, the 26-year-old Jabeur won the Viking Classic to become the first Arab player to win a WTA Tour singles. She used the long break to look at stats with her team and find ways to improve her game.
“I wanted to see what I was doing wrong because I knew it was very close,” she said, adding that focusing on her first serve made a big difference.
The 21-year-old Andreescu won the 2019 tournament in Toronto to become the first Canadian winner in the event since 1969. She also won the 2019 U.S. Open.
“I'm super disappointed in how I played,” Andreescu said. “But at the same time, Ons played super well. And I tried to play my best with what I had today. I know I could have won this tournament again.”