Prior to this season, she had played six Grand Slam main draws and lost in the first or second round in all of them. I was really stung by a wasp.
Mladenovic had high hopes of becoming the first French champion since Mary Pierce in 2000, but never really clicked on Court Philippe-Chatrier.
But Bacsinszky broke back. Ivanovic won the title at the French Open the next year. Still, it was clear that she was up to the task against the 11th-seeded Wozniacki, who is 26 and has been to two U.S. Open finals and yet somehow seemed the less sure of herself.
The 24-year-old Frenchwoman scored the fourth break of the set for 4-all. Ostapenko's victory occupied 1hr 53min, and Bacsinszky's 1hr 49min, which brought both matches in under the minimum-play requirement of two hours. "We had everything today: a hurricane, and sand storms, nice weather, and nearly snow.it was really complicated to stay focused throughout the day".
Ostapenko will turn 20 while Bacsinszky turns 28.
The gulf in experience between Wozniacki, who was competing in her eighth Grand Slam quarter-final, and Ostapenko was huge.
Both players struggled in the blustery conditions in the first part of the match but the French 24-year-old in particular lacked the intensity and power of her Muguruza win. A hard flat-hitter, she has learnt to play on the red dirt since hiring former clay-court specialist Anabel Medina Garrigues as her coach. The home favourite Kristina Mladenovic was beaten by Timea Bacsinszky 6/4 6/4.
Bacsinszky (27), the world number 31, had opened up a 2-0 and then 4-2 lead in the first set, only for Mladenovic to respond each time before closing out the set in 63 minutes with an ace.
Rain postponed the men's quarterfinals involving Rafael Nadal and Novak Djokovic on a stop-and-start day at the French Open on Tuesday. A daring backhand drop shot earned the woman in green a break point, but Mladenovic netted her best shot, the forehand, and could not convert. "I feel really privileged".
- A hilarious Timea Bacsinszky pretends she's an umpire for a second as she waits for reporters to take their seats for her press conferences.
"When I came here, I didn't expect that I'm going to be in the semis, but I was playing better and better every match".
Ostapenko carved out a 5-2 lead and Wozniacki looked relieved to get off court when torrential rain arrived to force a three-hour delay.
The next year, she made a big breakthrough, a semi run at Roland Garros, followed by the quarters last year, and this year was proving to be another spirit-lifting visit for the Swiss.
Addressing the French crowd she said: "I am sorry, thank you for the atmosphere". "She did in the second set, but I managed to close it off in three, which I'm happy about".