Carlos Alcaraz produced his best display of the tournament to line up a quarter-final rematch with Stefanos Tsitsipas at the French Open, while Iga Swiatek ramped up her bid for a third successive Roland Garros title with a 40-minute blitz on Sunday.

Alcaraz says he feels much more like himself in Paris after an injury-hit build-up saw him sidelined by a sore forearm for almost a month.

His 6-3, 6-3, 6-1 win over Canadian 21st seed Auger-Aliassime suggested he is rounding into top form, sending an ominous signal to his rivals as he made the last eight for the third year in succession.

The Spaniard pumped 34 winners past Auger-Aliassime as the persistent rain which heavily disrupted the first week of the tournament finally relented, allowing matches on the two main courts to go ahead without the need for their retractable roofs.

"I'm really happy with my performance. I think I played a really high level of tennis," said Alcaraz, beaten by eventual champion Novak Djokovic in the semi-finals last year.

"The most important thing is to believe in myself. It doesn't matter that I don't have too many matches on my back and that I didn't come with a lot of rhythm."

"My game is getting better and better," he added. "My confidence is getting higher. Every practice that I'm doing or every day that I'm here in Roland Garros, I'm feeling better and better."

Alcaraz moves on to play Tsitsipas after the 2021 Roland Garros runner-up fended off Italy's Matteo Arnaldi 3-6, 7-6 (7/4), 6-2, 6-2, the turning point coming in the second set when he saved four set points.

"It was one of the craziest comebacks I've had," said ninth seed Tsitsipas. "That game when I broke (down 5-3 in the second set) was the biggest pleasure I've experienced in tennis for a long time."

Alcaraz boasts a 5-0 career head-to-head record over Tsitsipas with three wins on clay, including a straight-sets victory in the French Open quarter-finals a year ago.

"He has said in the past he likes playing against me, so I hope he gets to like it a little bit less this time," said Tsitsipas.

Second seed Jannik Sinner has yet to drop a set through three rounds and takes on the last remaining Frenchman in the draw, Corentin Moutet, in the night session.

Australian Open champion Sinner has lost only two matches this year and will replace Djokovic as world number one if he reaches the final.

Sinner withdrew from Madrid with a hip problem and then skipped Rome, a precaution which appears to be paying off.

"I feel good. The hip at the moment feels good," he said. "Me and my team, we made a very good job to be in the position to play here."