MOSCOW -- Ekaterina Alexandrova advanced to the final of the Kremlin Cup after Maria Sakkari retired from their semifinal match Saturday.
Alexandrova, who had a 4-1 lead when Sakkari bowed out, will face Anett Kontaveit in Sunday's final.
Tournament organizers said Sakkari cited dizziness for the stoppage. She is ranked seventh in the world and secured a place at the season-ending WTA Finals earlier this week.
Alexandrova reached her first tour-level final since winning the Shenzhen Open in January 2020 and has a 1-1 career record in finals.
Kontaveit will bid to win a third title in as many months after beating Marketa Vondrousova 6-3, 6-4 in the other semifinal. The Estonian took a big lead early in both sets but took her time closing out the match on the fourth match point.
"I thought it was a very difficult match. I was trying my hardest, and Marketa is such a nice girl and a tough opponent and a tricky opponent to play against," Kontaveit said. "I'm so happy to be in the final.''
In the men's competition, two-time winner Marin Cilic will face No. 2 seed Aslan Karatsev in Sunday's final.
Cilic, the No. 6 seed, ousted Lithuania's Ricardas Berankis 6-3, 6-4 in in the first semifinal, while Karatsev dispatched fellow Russian Karen Khachanov 7-6 (7), 6-1 in the second semifinal.