The Argentinian bested Nadal in the Rome Masters quarter-finals last month for his first win against the world number two.
Schwartzman stunned Nadal 6-2, 7-5 two weeks ago in the Italian capital.
Al Nassr broke the deadlock with a penalty in the 35th minute before Abdi Mehdi Qara leveled for Persepolis just six minutes later.
"Since then, I've made huge progress because I've played a few big matches, against Simona, against Caroline Wozniacki and Naomi Osaka, and I think it helped me a lot and now I feel like I can handle the pressure," Swiatek added.
After four games of the season, Athletic Club Bilbao coach Gaizka Garitano has emerged as the early favorite in the 'sack race' after his side lost 1-0 at home to nine-man Cadiz, before being beaten by the same score away to Alaves on Sunday.
LONDON, Oct. 4 (Xinhua) -- The weekend produced two absolutely incredible results in the Premier League as Manchester United lost 6-1 at home to Tottenham, while reigning champion Liverpool was thrashed 7-2 away to Aston Villa.
They call him El Maestro, and for good reason. Oscar Tabarez, a former school teacher, has been a coach, educator, mentor, strategist and father figure to generations of Uruguayan players since taking charge of the national team for the first time in 1988.
"I'm very, very happy to be in the semifinals again and here at Roland Garros," Nadal said on court. "No doubt that this is the most important place for me and the most beautiful place to play."
Julian Draxler, Idrissa Gueye and Kylian Mbappe added another three in the second half while Angers pulled one back in the 52nd minute.
"I don't know what happened actually, I felt like I was playing perfectly, I was so focused the whole match, even I am surprised that I can do that," said the 54th-ranked Swiatek, who fired 30 winners and won 81 percent of her first-serve to wrap up the victory.
On the top floor of a downtown shopping mall, 29-year-old Sun Shaorong was sitting in a go-kart and wearing a pink helmet. The roar of the engine announced that she was ready to race with other five cars behind her.