French Open: Bacsinszky, Ostapenko in semis

Swiss 30th seed Timea Bacsinszky defeated home favourite Kristina Mladenovic, while unseeded Latvian Jelena Ostapenko stunned Danish 11th seed Caroline Wozniacki 4-6, 6-2, 6-2.

Timea Bacsinszky of Switzerland applauds after defeating France's Kristina Mladenovic during their quarterfinal match.

Swiss 30th seed Timea Bacsinszky reached the French Open semifinals for the second time on Tuesday with a rain-hit 6-4, 6-4 win over home hope Kristina Mladenovic.

The unseeded 19-year-old will face Swiss 30th seed Timea Bacsinszky for a place in Saturday's final.

The 27-year-old, who also made the last four in 2015, will face unseeded Latvian Jelena Ostapenko, who stunned Danish 11th seed Caroline Wozniacki 4-6, 6-2, 6-2 for a place in Saturday's final.

"I feel extremely privileged to be in a second semifinal at Roland Garros," said Bacsinszky, whose run to the last four two years ago was ended by Serena Williams in three sets.

Tuesday's match was one hour 49 minutes in duration but took the best part of six hours to complete after two rain delays -- one lasting three hours.

"It was extremely difficult today. There was fine weather, then rain, wind and the clay was blowing in our eyes.

"I had to stay concentrated. I am sorry for the crowd but happy for me."