Nobody beats Diego Schwartzman 10 times in a row. Not even Rafael Nadal.

Schwartzman stunned nine-time Rome champion Nadal 6-2, 7-5 after two hours and four minutes on Saturday evening to reach the semi-finals of the Internazionali BNL d’Italia. Entering the match, Nadal had won all nine of their ATP Head2Head meetings, including 22 of their 24 sets.

"For sure it's my best match ever," Schwartzman said. "I played a few times against the three big champions in tennis. I never beat them until today. I'm very happy."

Schwartzman vs. Nadal - Stats

Stats Diego Schwartzman Rafael Nadal
First-Serve Points Won 64% 48%
Second-Serve Points Won 58% 44%
Break Points Saved 3/5 4/9
Winners 31 21
Unforced Errors 17 30

The Argentine is into his second ATP Masters 1000 semi-final. Schwartzman reached the last four at this level for the first time last year at the same event. He lost three of his first four matches at the Foro Italico, but has now won seven of his past eight on the Roman clay. He was especially courageous on the backhand side, keeping Nadal from playing his typical overwhelming clay-court tennis.

"It was crazy. Tennis is crazy. Our performance is always crazy. The past three weeks were really bad for me," Schwartzman said on court after his victory. "Today I played my best tennis. Very similar to Roland Garros against Rafa three years ago and I'm very happy. I was not thinking to beat him really because I was not playing good [lately]. But today I did my best and I'm very happy."

Schwartzman played a spectacular match to earn his first victory against Nadal, playing aggressively and emerging victorious in cat-and-mouse points that few opponents win against Nadal, especially on clay.

"I played against him nine times before. Four or five times I was not close, but playing really well and close in the score, feeling well," Schwartzman said. "I came to the court trying to do the same things and the first set was really, really good for me. I took every chance he gave me."

Nadal’s forehand is one of the biggest weapons in tennis, but Schwartzman consistently engaged in cross-court rallies with his backhand, pummeling his two-hander at every opportunity. The second seed only won 48 per cent of his first-serve points, whereas Schwartzman earned 58 per cent of his second-serve points.

“You don't see this on clay," Tennis Channel commentator Paul Annacone, former coach of Pete Sampras and Roger Federer, said of Schwartzman’s performance during the second set.

Nadal was trying to win his 10th Internazionali BNL d’Italia title. The legendary lefty falls to 63-7 at the Italian Masters 1000 event. This was his first tournament since the ATP Tour resumed in August.

Schwartzman took a set-and-a-break lead when Nadal hit a forehand drop shot into the net from inside the court. But that was only the first of five consecutive service breaks. The Argentine served for the match at 5-4, but was broken at love by a determined Nadal, who refused to make any unforced errors.

Schwartzman did not get discouraged, earning another chance to serve for the match with a two-part passing shot combination. He let out a roar after smacking a short backhand past a helpless Nadal at the net. This time, Schwartzman converted his opportunity, screaming, "Yeah!" after finishing the match with a forehand drop volley.

“[It was] a super heavy evening in terms of humidity. Conditions out there were much heavier than the previous days in terms of the bounces of the ball. For me was difficult to push him back. He did a great job,” Nadal said. “I tried hard in the second, but losing serve three times in a row, then you need to [hope] for a miracle. I did twice, but the third one, even if I was 15/30, was not possible.”

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The Argentine will play Canadian lefty Denis Shapovalov on Sunday for a spot in the Rome final, which would be Schwartzman's first at a Masters 1000. They know each other well, having trained together in the Bahamas before the Western & Southern Open.

"He's playing really well since we came back in the U.S. He was playing good," Schwartzman said. "He's a really good guy... It's going to be really tough, but I think if I play like today I'm going to have chances."

Did You Know?
Schwartzman is now 8-28 against Top 10 opponents. If he wins the Internazionali BNL d'Italia, he will crack the Top 10 of the FedEx ATP Rankings for the first time. If he doesn't, Shapovalov will accomplish the same feat.