In each of her four matches she has not given her opponents the time to breathe, jumping out to break leads of either 3-0 or 2-1 ahead of the first sit-down.
“All the credit to her, she played unbelievable today and she was everywhere and she hit all the balls very strong, very powerful,” Halep said.
The 2018 champion was the latest top women’s contender to exit in a span of less than 24 hours. Garbine Muguruza fell to Danielle Collins on Saturday night and then later on Sunday, Italian qualifier Martina Trevisan eliminated Kiki Bertens 6-4, 6-4 to reach her maiden Grand Slam quarter-final.
In successive rounds, the 159th-ranked Trevisan — who had openly discussed her battles with an eating disorder — had seen off Coco Gauff, Maria Sakkari and now the clay-loving 2016 Roland-Garros semi-finalist, Bertens.
Swiatek and Trevisan meet on Tuesday and for one, the sweet music is set to continue.