While Thiem faces an nearly impossible task on Sunday, Nadal was taking nothing for granted against the man who beat him in Madrid.
One of those was a 6-3, 6-4, 6-0 rout in the Roland Garros semi-finals 12 months ago.
She improved in the second set, breaking early on only to be pegged back at 4-4 before Halep held a marathon ninth game and broke for a 6-1 6-4 win.
Eleventh seed Schwartzman snapped Nadal's run of winning 37 consecutive completed sets at Roland Garros when he took the opener 6-4 on Court Philippe Chatrier.
The above table clearly demonstrates the sheer domination that the likes of Borg and Nadal have had on clay.
Austria’s Dominic Thiem will meet Rafael Nadal in the French Open final Sunday. Thiem defeated Marco Cecchinato in Friday’s semifinal 7-5 7-6
Fitness permitting, Nadal is arguably the most in-form player in world tennis at the present moment and his record at Roland Garros is barely believable.
Plenty have gone in with sound tactical plans against the 16-times Grand Slam champion in Paris but when the forehand bombardment begins, the best-laid plans usually fall apart as was the case in Friday's semi-final when Nadal thrashed Juan Martin del Potro who many thought posed a credible threat.
Nadal, 32, earned a record 10th title in Paris past year and has lost just twice at the tournament since making his debut back in 2005. I know I have to play my best tennis to have a chance on Sunday.
Nadal raced away with 14 of the last 17 games. "Nadal's capable of keeping this very aggressive, high-intensity level over an unbelievably long period of time".
"Before it I was not opening the court with the backhand". Yet Nadal and James are tapping into a cycle of near-peerless play that is redefining how we view the greats and what can be accomplished well more than a decade into all-time careers.More news: Pompeo says North Korea could get ‘unique’ security guarantees
But it took Muguruza quite a while to get going against Halep, who managed to keep sending ball after ball back over the net. I didn't, like, try to do it.
But that was only after Nadal had allowed him just two games in a last-eight mauling in Monte Carlo.
The 29-year-old was in tears after the win. A day later, it was rarely used as effectively.
It was the first time in three years that Nadal had dropped a set in Paris. In the fourth game Friday, del Potro clutched at his left hip after being wrong-footed by one shot from Nadal and was visited by a doctor at the next changeover. "Good tactics and mentality in the first set". Schwartzman saw two set points come and go but at the third time of asking, after a delay while a spectator was helped out after feeling ill, the Argentine ripped a forehand victor. He likes the conditions more here than in Madrid. "It's so good for me, for my team, for my family". "You can't always find the excuses or positive things about the external things", he said.
Del Potro had forced six break points during the first set but Nadal fended each one off.More news: Austria vs. Brazil - Football Match Report
In the other remaining quarterfinal, also suspended on Wednesday, No. 3 Marin Cilic and No. 5 Juan Martin del Potro will resume at 5-all in a first-set tiebreaker. It marks the world No. 6's first French Open semifinal since 2009. Given the wet forecast and the fact Thiem has beaten Nadal on clay each of the last three seasons, I'm going for a huge upset.
Del Potro has served 53 aces to reach the semi-final and his forehand, a stroke that could chop down trees, worries the very best as he showed by beating Roger Federer at last year's US Open and winning the Indian Wells title in March.
Afterwards a tearful Del Potro said on courtside: "It's tough to speak now". I was close to quit this sport.More news: Dele Alli promises best behaviour at World Cup