Czech teenager Nicole Vaidisova won the Japan Open on Sunday after France's Tatiana Golovin was forced to retire with a leg injury in the second set.
The victory was second seed Vaidisova's biggest title to date and her fourth overall. It was also her second in successive weeks having won in Seoul last week.
The Czech was leading the match 7-6, 3-2 when a limping Golovin called it quits in Tokyo.
"I played a pretty good match but I feel really sorry we couldn't finish it," Vaidisova said. "I'm sad for Tatiana.
"The first set was really tight, so I was hoping it would turn into a good match with a good finish, but it didn't turn out that way."
The match was the eighth youngest final in the Open era with the 16-year-old Vaidisova against the 17-year-old from France.
Third seed Golovin took a medical timeout for an Achilles problem after going down 3-1 in the second set and stopped three points into the sixth game.
"After the last few matches I've been waking up with a lot of pain," Golovin said.
"Today I really had no choice (but to stop)."
