NURNBERG, Germany - Defending champion Kiki Bertens moved back into the final of the Nürnberger Versicherungscup after Misaki Doi retired while 1-0 up in the second set of Friday's semifinal.
The Dutchwoman and top seed had won the first set 6-2, shortly before Doi conceded the match.
"I'm really happy, coming here with a great feeling, winning the title last year and now I'm back in the final - hopefully I can do it again tomorrow," Bertens said. "I had to really stay in the points and try to find my rhythm."
The World No.19 is looking to win the third title of her career, as all four of her career finals have come on clay.
Bertens will play 21-year-old Czech Barbora Krejcikova in Saturday's final after the youngster continued her dream week with a three-set semifinal win to advance to her first career WTA singles final.
Krejcikova outlasted Sorana Cirstea, 6-4, 4-6, 6-0 after the Romanian started the day winning the last two games to finish off No.2 seed Yulia Putintseva, 6-3, 3-6, 6-4 in a quarterfinal that was suspended due to darkness last night.
The Czech is not a stranger to WTA finals entirely - she's reached three in doubles in her young career with different partners, and raised the Coupe Banque Nationale trophy alongside Belgian An-Sophie Mestach in 2015.
Saturday's doubles final will be an all-unseeded affair between American Nicole Melichar and Brit Anna Smith against Belgian Kirsten Flipkens and Sweden's Johanna Larsson.