On a Sunday of upsets at the French Open, revenge was a dish served up in an autumnal chill by a Polish teenager.

Against the player who humbled her 6-1, 6-0 at the same stage last year, Iga Swiatek turned the tables on top-seeded Simona Halep, sending the 2018 champion packing 6-1, 6-2 with powerful groundstrokes and exquisite net play to advance to her first Grand Slam quarterfinal.

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Romania's Simona Halep reacts after missing a shot against Poland's Iga Swiatek in the fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoMichel Euler)

On a Sunday of upsets at the French Open, revenge was a dish served up in an autumnal chill by a Polish teenager.

Romania's Simona Halep reacts after missing a shot against Poland's Iga Swiatek in the fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoAlessandra Tarantino)

Halep lasted just 23 minutes longer this time. She never had a break point against her opponent who racked up 14 against her, breaking her twice in each set and keeping her serve under near-constant stress.

Romania's Simona Halep reacts after missing a shot against Poland's Iga Swiatek in the fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoAlessandra Tarantino)

She tossed her racket in delight after sealing the victory with a backhand lob from the baseline that her Dutch foe, who'd been serving to stay in the match, could only watch as it soared over her head and plopped in.

Poland's Iga Swiatek celebrates winning her fourth round match of the French Open tennis tournament against Romania's Simona Halep in two sets, 6-1, 6-2, at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoMichel Euler)

Swiatek, who also reached the fourth round this year at Melbourne Park, has said that having recently passed her school exams, she now wants to fully focus on her tennis, to see whether she should make a career of it or head to university.

Italy's Martina Trevisan serves against Netherlands' Kiki Bertens in the fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoChristophe Ena)

Italy's Martina Trevisan serves against Netherlands' Kiki Bertens in the fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoChristophe Ena)

Netherlands' Kiki Bertens plays a shot against Italy's Martina Trevisan in the fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoChristophe Ena)

Netherlands' Kiki Bertens plays a shot against Italy's Martina Trevisan in the fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoChristophe Ena)

Italy's Martina Trevisan clenches her fist after scoring a point against Netherlands' Kiki Bertens in the fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoChristophe Ena)

Italy's Martina Trevisan clenches her fist after scoring a point against Netherlands' Kiki Bertens in the fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoChristophe Ena)

Halep, who also lifted the title at Wimbledon last year, never got into her stride on Court Philippe Chatrier and was unable to exert any pressure on the 19-year-old who wilted with nerves in their fourth-round meeting last year that was over in just 45 minutes.

Romania's Simona Halep reacts after missing a shot against Poland's Iga Swiatek in the fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoMichel Euler)

Romania's Simona Halep reacts after missing a shot against Poland's Iga Swiatek in the fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoMichel Euler)

Halep lasted just 23 minutes longer this time. She never had a break point against her opponent who racked up 14 against her, breaking her twice in each set and keeping her serve under near-constant stress.

“She was everywhere,” said Halep, who had been on a career-best winning streak of 17 matches. “I will have a chocolate and I will be better tomorrow.”

Adding to a sense that winds of change are blowing across women's tennis at this French Open pushed back by the coronavirus from its usual May-June spot, Italian qualifier Martina Trevisan ousted fifth-seeded Kiki Bertens moments later, winning 6-4, 6-4 on Court Suzanne Lenglen.

Romania's Simona Halep reacts after missing a shot against Poland's Iga Swiatek in the fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoAlessandra Tarantino)

Romania's Simona Halep reacts after missing a shot against Poland's Iga Swiatek in the fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoAlessandra Tarantino)

She tossed her racket in delight after sealing the victory with a backhand lob from the baseline that her Dutch foe, who'd been serving to stay in the match, could only watch as it soared over her head and plopped in.

Swiatek, the only teenager who reached the fourth round, and Trevisan, one of two qualifiers who got that far, will now play each other in what will be a first Grand Slam quarterfinal for them both.

The 159th-ranked Trevisan is playing only her second Grand Slam. She was a first-round loser at her first: the Australian Open this year.

Romania's Simona Halep reacts after missing a shot against Poland's Iga Swiatek in the fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoAlessandra Tarantino)

Romania's Simona Halep reacts after missing a shot against Poland's Iga Swiatek in the fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoAlessandra Tarantino)

Swiatek, who also reached the fourth round this year at Melbourne Park, has said that having recently passed her school exams, she now wants to fully focus on her tennis, to see whether she should make a career of it or head to university.

Based on the evidence so far on clay in Paris, the books can wait.

More AP tennis: https://apnews.com/apf-Tennis and https://twitter.com/AP_Sports

Poland's Iga Swiatek celebrates winning her fourth round match of the French Open tennis tournament against Romania's Simona Halep in two sets, 6-1, 6-2, at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoMichel Euler)

Poland's Iga Swiatek celebrates winning her fourth round match of the French Open tennis tournament against Romania's Simona Halep in two sets, 6-1, 6-2, at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoMichel Euler)

Italy's Martina Trevisan serves against Netherlands' Kiki Bertens in the fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoChristophe Ena)

Italy's Martina Trevisan serves against Netherlands' Kiki Bertens in the fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoChristophe Ena)

Netherlands' Kiki Bertens plays a shot against Italy's Martina Trevisan in the fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoChristophe Ena)

Netherlands' Kiki Bertens plays a shot against Italy's Martina Trevisan in the fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoChristophe Ena)

Italy's Martina Trevisan clenches her fist after scoring a point against Netherlands' Kiki Bertens in the fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoChristophe Ena)

Italy's Martina Trevisan clenches her fist after scoring a point against Netherlands' Kiki Bertens in the fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, France, Sunday, Oct. 4, 2020. (AP PhotoChristophe Ena)