Tunisian Ons Jabeur grew to become the primary main casualty on the opening day of the French Open on Sunday when the in-form sixth seed crashed out with a 3-6, 7-6 (4), 7-5 loss to Poland's Magda Linette.
Later, Tenth-seeded Spaniard Garbine Muguruza went down 2-6, 6-3, 6-4 to Estonia's Kaiai Kanepi.
Jabeur, seen as one of many huge threats to World No. 1 Iga Swiatek on the claycourt Grand Slam, got here to Paris at a career-high rating and with a tour-leading 17 wins on the floor.
Along with her win in Madrid and runner-up finishes in Rome and Charleston, it appeared like Jabeur would have a straightforward outing in opposition to Linette when she made a powerful begin on Court docket Philippe Chatrier underneath overcast skies.
The 27-year-old suffered an early break of serve earlier than breezing by way of the opening set in 37 minutes earlier than Linette, who was ranked 56th earlier than the beginning of the second main of the yr, raised her sport.
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Linette, 30, had solely defeated Jabeur within the first of their 4 conferences again in 2013 however she staged an impressed fightback within the second set, saving 4 breakpoints to degree the match within the tiebreak.
As drops of rain fell on the primary showcourt, Jabeur's degree additionally dipped and her unforced errors climbed and he or she made her frustration evident by kicking balls away after shedding factors.
Linette, who misplaced to Jabeur within the third spherical final yr, went up 4-2 within the third set however noticed her benefit slip away when Jabeur broke her serve again to remain alive.
However the Pole sealed the match when the Tunisian wasted a 40-0 lead within the twelfth sport and located the online on match level to be damaged for the second time within the set.
"I had so many powerful matches with Ons and final yr right here I misplaced to her within the third spherical so I knew how tough it will be," Linette mentioned on court docket.
"She was taking part in so effectively all this time. I knew I've to be targeted and play each single level and attempt to make her uncomfortable. I'm blissful that I simply managed to combat for each single level."
Linette will subsequent play Martina Trevisan of Italy or Briton Harriet Dart.