This will be Halep's second French Open final.
On the morning of the women's French Open semi-finals on Thursday seven-times champion Chris Evert said the moment had arrived for a player to step up and seize an opportunity that may not come around again for a while. "I think she's very special".
"The best thing is that I didn't give up". "And now it's close, but it's close and it's far, as well, because I'm playing against somebody who I would (call) one of the best girls on clay".
But overcoming Halep could prove to be very hard.
Although she could not convert a couple of set point chances on the Czech's serve, Halep looked after her own and looked comfortable on her way to a 6-4 win. I love to play here, I love you guys, you're incredible.
"I think more about the game, and I play smarter, in my opinion, and also physically".
"I was just trying to stay aggressive and to go for a shot when I could", Ostapenko said. But I'm confident as well.
Ostapenko and Halep have never faced off.
Ostapenko, 19, has lost the first set in three of her five matches at this tournament, including in each of the past two.
Ostapenko - who practiced ballroom dancing when younger - signaled her promise in tennis by winning the Wimbledon juniors in 2014. The Romanian even came within inches of defeat because one of her forehands clipped the line when she was trailing 5-6 in the tiebreaker, reports Efe.
If she wins, she'll be one of the biggest outsiders ever to take the title.
Halep reunited with Cahill in Madrid after the Adelaide mentor walked away following her mid-match emotion in Miami.
During the first set of three tennis players have exchanged breaks, and at the tiebreak constantly attacked Ostapenko has played a more reliable and took the lead.
"My game is stronger, and it's different". - Murray, on his form entering the French Open.
She is also hoping to win a maiden tour-level title at a Slam - a feat lasted accomplished by Gustavo Kuerten at the French Open in 1997 on the same day Ostapenko was born.
She came agonisingly close a year ago in the US Open after she beat red hot favourite Serena Williams in the semi-final. That match will be played Thursday on the Philippe-Chatrier Court at Roland Garros in Paris. But at last year's US Open, she lost in the Final, and she made it to the quarterfinals of the Australian Open to start the 2017 Grand Slam season. The matchup presents a lot of interesting variables, as Ostapenko has already proven that she can play against highly-ranked players.
"In the third set, everything was through the long rally, which is better for her and she's winning on a higher percentage definitely", Pliskova pointed out.
With points stretching in the third, the key break resulted at 4-3.
She was hauled back in the seventh game but Pliskova, her error count racing past the 50-mark, handed it back, allowing Halep to serve for the match.